Entries |
Document | Title | Date |
20080204960 | DEVICE FOR PREVENTING INTERNAL COMBUSTION OF EQUIPMENT FROM SPREADING OUTWARDS - Two devices for preventing internal combustion of equipment from spreading outwards includes a sampling circuit, a detecting and monitoring circuit, and a low-voltage datum power supply. The sampling circuit includes two thermal detectors. The detecting and monitoring circuit includes a first monitoring output end and a second monitoring output end. When two thermal detectors are both normal, the first monitoring output is inactive and the second monitoring output is inactive. When one of the thermal detectors is abnormal, the first monitoring output is inactive and the second monitoring output is active. When the two thermal detectors are both abnormal, the first monitoring output is active and the second monitoring output is active. The first monitoring output is configured to turn off the power supply of a fan and the second monitoring output is configured to drive an alarm unit. | 08-28-2008 |
20080212249 | Multi-Threshold Charging of a Rechargeable Battery - In a preferred embodiment, a battery charging system in the form of an integrated circuit (IC), incorporated in a consumer electronic device, has a charging controller, a charging current generator, a junction temperature sensor, and a device current monitor. The junction temperature sensor provides to the charging controller a measured junction temperature of the IC. The charging current generator utilizes fractional synthesis, which involves regulating the duty cycles of multiple current sources, to achieve increased current resolution. The charging controller regulates the charging current provided by the charging current generator based on the relation of the measured junction temperature to three or more threshold temperatures. The device current monitor provides to the charging controller information about the current utilization of the consumer electronic device, thus allowing the charging controller to determine the device non-charging current and give priority for available current to user applications running on the consumer electronic device. | 09-04-2008 |
20080239608 | Protection device for protecting external device and method of controlling the same - A protection device includes a connecting portion, power supply means, temperature detection means, temperature determination means, and prohibition means. The connecting portion is configured to be coupled with an external device for sending and receiving information with the external device. The power supply means supplies electric power to the external device through the connecting portion. The temperature detection means detects temperature in a vehicle compartment, and the temperature determination means determines whether the detected temperature is within a predetermined temperature limit. The prohibition means stops the power to the external device when the temperature determination means determines that the detected temperature is out of the predetermined temperature limit. | 10-02-2008 |
20080239609 | METHOD AND APPARATUS PROVIDING FINAL TEST AND TRIMMING FOR A POWER SUPPLY CONTROLLER - A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown circuit and a disable circuit. The trim circuit includes a programmable circuit connection that can be selected by the selector circuit by toggling a voltage on an external terminal such as for example a power supply terminal, a control terminal or a function terminal of the power supply controller. The programmable circuit connection in the trim circuit can be programmed by applying a programming voltage to the external terminal. The shutdown circuit shuts down the power supply controller if the temperature rises above an over temperature threshold voltage. The shutdown circuit includes adjustment circuitry that can be used to test the shutdown circuit. The adjustment circuitry can adjust and reduce the over temperature threshold of the power supply controller. Thus, the power supply controller can be tested without having to actually heat the part. The disable circuit includes a programmable circuit connection, which when programmed prevents further trimming of power supply controller and prevents adjustment of the shutdown circuit over temperature threshold. | 10-02-2008 |
20080310070 | SYSTEMS AND METHODS FOR PROTECTING DEVICE FROM CHANGE DUE TO QUALITY OF REPLACEABLE COMPONENTS - A device protection system for a device that operates using a replaceable component provided with a replaceable component, component monitor, and a means for disabling the replaceable component. The component monitor is provided with a storage unit, a sensing unit, a determination unit and a control unit that engages a disabling device for rendering the replaceable component inoperable in, or incompatible with, a device within which the replaceable component is intended to operate such as, an image forming device. In particular, the component monitors the temperature of an environment relating to the replaceable component that if exceeded, will affect performance of the replaceable component. The component will disable the disabling unit to protect the device. | 12-18-2008 |
20090046405 | SEMICONDUCTOR DEVICE - In order to enable detection of degradation of the heat dissipation from a semiconductor chip, even when the operating state of a semiconductor device cannot be predicted, a thermal resistance calculation circuit calculates the thermal resistance of the heat dissipation path from the semiconductor chip, based on the loss of a switching element calculated by a loss calculation circuit and the temperature of the semiconductor chip calculated by a temperature calculation portion, and when the voltage corresponding to the thermal resistance calculated by the thermal resistance calculation circuit exceeds a reference voltage, switching operation of the switching element is halted. | 02-19-2009 |
20090052105 | Thermal Management within Mobile RFID Readers through the Application of Temperature Governed Variable Non-Emissive Intervals - A thermal management system and method to control temperature in an RFID reader is described herein. In particular, by inserting variable periods of inactivity (or latency) at the beginning or at the end of each read cycle, proportional to an instantaneous temperature value of the RFID reader, over-heating and damage of RFID reader electronics is prevented. The RFID reader includes a thermal sensor and determines when the high power RF electronics is enabled. If the RFID reader is in an over-heated condition, it can be turned OFF and during this period any requests received on an interface to the RFID reader to perform a read of tag(s) are not processed. | 02-26-2009 |
20090086397 | PROTECTION CIRCUIT MODULE FOR SECONDARY BATTERY - A protection circuit module for a secondary battery including a wiring substrate including two battery-side external connection terminals provided on a top surface thereof, multiple load-side external connection terminals provided on a back surface opposite the top surface, and at least one cutout or through-hole in the wiring substrate; one or more electronic components provided on the wiring substrate; and two metal plates provided respectively on the two battery-side external connection terminals. The at least one cutout or through-hole is provided at a portion of the wiring substrate in which one of the two metal plates is provided, so that a part of the one of the two metal plates is exposed through the cutout or the through-hole when viewed from the back surface of the wiring substrate. | 04-02-2009 |
20090097183 | OVERVOLTAGE PROTECTION - The invention relates to an overvoltage protection comprising a bracket ( | 04-16-2009 |
20090122454 | AUGMENTATION OF AMBIENT TEMPERATURE AND FREE CONVECTION EFFECTS IN THERMAL CIRCUIT BREAKER TRIP CURVE APPROXIMATIONS - An electrical overload protection system may be based on a solid state control system. A solid state switch may open responsively to commands for a solid-state controller. The controller may perform calculations to determine accumulated energy in a protected conductor. The calculations may be based, in part, on samplings of current in the protected conductor and ambient temperature to which the conductor may be exposed. | 05-14-2009 |
20090161280 | THERMALLY PROTECTED METAL OXIDE VARISTOR HAVING PIN-TYPE DISENGAGING MECHANISM - A thermally protected metal oxide varistor having a pin-type disengaging mechanism includes a varistor body having two metal electrodes coated thereon, an insulating layer enclosing the varistor, a first lead, a second lead, a third lead, a solder, and an elastic member. The first lead and the third lead are coupled to the varistor body. The solder is disposed at an electrical connection point of the varistor body. The elastic member is fixed at an outside of the insulating layer. The second lead includes a connection pin. The connection pin extends through the elastic member and is fixed by the solder to the electrical connection point. When an over-voltage occurs, temperature of the varistor body is raised to melt the solder. A restoring force provided by the elastic member disconnects the second lead from the electrical connection point of the varistor body. | 06-25-2009 |
20090168285 | CPU POWER CONTROL CIRCUIT - A CPU power control circuit includes a temperature detection circuit, a power supply circuit and a discharge circuit. The power supply circuit is connected to the temperature detection circuit, a CPU and the discharge circuit. The discharge circuit is connected to the temperature detection circuit and the CPU. The temperature detection circuit is connected to the CPU for detecting the temperature of the CPU. When the temperature of the CPU exceeds a predetermined range, the temperature detection circuit outputs a high temperature signal. The power supply circuit receives the high temperature signal, and stops working. The discharge circuit receives the high temperature signal, and discharges the power supply circuit so as to stop supplying power to the CPU. | 07-02-2009 |
20090180232 | TUBE INTEGRITY SAFETY SWITCH - A safety device for disabling a positive pressure radiant tube heater upon failure of the heat exchanger and a corresponding method are described. This invention relates to the ability to detect a condition where a failure of the heat exchanger triggers the safety device and disables the heater. The safety device includes a low melt wire; an insulating sleeve positioned about the low melt wire, the wire and sleeve positioned on top of the reflector, a tension device to maintain the wire under tension; and a control device to disable the heater if the wire is discontinuous. | 07-16-2009 |
20090185323 | OVERHEAT PROTECTION CIRCUIT - In order to provide an overheat protection circuit having a small mounting area, the overheat protection circuit includes: a resistor bridge circuit which includes: a plurality of resistors each having a temperature coefficient; an input terminal; and an output terminal; and a comparator circuit connected to the output terminal and the input terminal of the resistor bridge circuit. Parts are each provided in the vicinity of one of the plurality of resistors each having the temperature coefficient, and the comparator circuit outputs an overheat detection signal when a temperature of one of the parts is equal to or higher than an overheat detection temperature. With this structure, a large number of parts can be protected from overheating by a minimum number of overheat protection circuits. Therefore, a circuit scale becomes smaller, and hence a cost for overheat protection becomes lower. | 07-23-2009 |
20090190281 | LOAD CONTROL APPARATUS - A load control apparatus adapted to indirectly detect an overcurrent, i.e. a current magnitude exceeding a predetermined limit value, occurring in an electric conductor element ( | 07-30-2009 |
20090237852 | HOT PLUG ELECTRONIC DEVICE WITH HIGH USING SAFETY AND OVER-THERMAL PROTECTION DEVICE THEREOF - A hot plug electronic device with high using safety is provided. The hot plug electronic device includes an operation circuit, a voltage regulator and an over-thermal protection device. The operation circuit is used for communicating with an external host. The voltage regulator is coupled to the operation circuit for supplying power to the operation circuit. The over-thermal protection device is coupled to the voltage regulator for sensing the present temperature of the hot plug electronic device, and accordingly controlling the voltage regulator to normally supply/stop supplying the power to the operation circuit. | 09-24-2009 |
20090237853 | LOAD DRIVE APPARATUS - A load drive apparatus is provided which comprises a switching element | 09-24-2009 |
20090323244 | Controlled Convection Thermal Disconnector - A surge protection device employing a controlled convection thermal disconnector in which a surge protective component, such as a metal oxide varistor, and a thermally responsive device, such as a thermal cut-off, are placed in separate, cross-ventilated chambers. An internal vent is positioned such that it prevents line-of-sight between the surge protective component and a mechanized portion of the thermally responsive device, in order to protect the thermally responsive device from hot surge protective component emissions from the surge protective component. An output vent is formed between the thermally responsive device and the exterior atmosphere to promote forced convective heat transfer from the surge protective component to the thermally responsive device during a thermal runaway condition, with the expanding gases in the surge protective component chamber providing the transfer impetus. | 12-31-2009 |
20100053834 | THERMAL PROTECTION CIRCUIT FOR POWER SUPPLY - A thermal protection circuit includes a driving circuit having a thermal control chip electrically disposed thereon. The driving circuit has a first output terminal for outputting voltage and a second output terminal for outputting thermal control voltage. A compare circuit is electrically connected to the driving circuit. The compare circuit includes a comparator electrically disposed thereon for forming a control voltage thereon. The second output terminal of the thermal control chip is electrically connected to the comparator. The comparator forms a base voltage that is determined on the control voltage and the output voltage. A detection circuit is electrically connected to the compare circuit and includes an input terminal disposed thereon for receiving the control voltage. The detection circuit detects the control voltage for controlling to close/open the thermal protection circuit. | 03-04-2010 |
20100053835 | PROTECTION CIRCUIT BOARD, SECONDARY BATTERY AND BATTERY PACK - A protection circuit board, a secondary battery with the protection circuit board, and a battery pack comprising the secondary battery. | 03-04-2010 |
20100073839 | Systems and Methods for Detecting Unsafe Thermal Conditions in Wiring Devices - Systems and methods that provide improved detection of series fault and other localized unsafe heating conditions are described. The systems and methods provide an increased range of response possibilities upon detection of such conditions. Multiple temperature sensors are located in close proximity with the location of potential over-heating events, and differential temperature sensing is used to detect over-heating events. Electronic sensors in accordance with implementations of the present invention detect overheating conditions at lower temperatures and more quickly because of the close proximity of the sensors to locations of potential overheating and because of the differential temperature sensing, thereby improving the safety of electrical wiring devices and fixtures. | 03-25-2010 |
20100157500 | COMPUTER SYSTEM AND POWER CONTROL APPARATUS THEREOF - A power control apparatus is disclosed. The power control apparatus includes a temperature sensor, a first voltage converter, an over-temperature protection, a reset unit and a second voltage converter. The temperature sensor is for sensing a measured temperature to output a sensing signal. The first voltage converter converts the power voltage of a computer system into a first voltage. The over-temperature protection unit receives the first voltage and decides whether or not outputting the first voltage according to the sensing signal. When the reset unit has received the first voltage from the over-temperature protection unit, the reset unit decides whether or not to produce a reset signal according to the level of the power voltage. The second voltage converter is for producing a start signal to enable the embedded controller according to the reset signal. | 06-24-2010 |
20100246084 | Control circuit - A control circuit includes a voltage-dividing resistor connected to a voltage input terminal, at least one thermal breaker series-connected between the voltage-dividing resistor and the ground and disposed near one corresponding battery, and an output terminal drawn forth from a connection location of the thermal breaker and the voltage-dividing resistor and adapted to be connected with a protective circuit. The thermal breaker breaks according to the temperature of the corresponding battery, and then the output terminal transmits different protective signals to the protective circuit according to the working state of the thermal breaker so as to make the protective circuit protect the battery based on the protective signals. Therefore, the control circuit of the present invention is relatively simpler and occupies a relatively smaller space so that can meet the demand of both miniaturization and low cost of electronic products. | 09-30-2010 |
20100254058 | INTEGRATED CIRCUIT ARRANGEMENT FOR SAFETY CRITICAL REGULATION SYSTEMS - An integrated circuit arrangement on a common chip or chip support, for safety critical applications, in particular for use in control and regulation units for a motor vehicle braking system, including at least one microprocessor system module, which has at least one core processor, provided with at least one ROM and at least one RAM, at least one power module for controlling external users and at least one monitoring module for monitoring at least parts and/or part systems of the circuit arrangement, the circuit arrangement including at least one temperature sensor for recording a chip temperature. | 10-07-2010 |
20100254059 | WIRE PROTECTION METHOD AND WIRE PROTECTION DEVICE - With a wire protection method in accordance with the present invention, the method being used for supplying electric power from a power source to a load, an applied-current to the load is detected every predetermined time, A wire rise temperature is calculated using the detected applied-current I(n) and by a relational expression concerning heat radiation and heat generation of the wire. The calculated rise in temperature is added to a reference temperature so that a wire temperature is estimated. When the estimated wire temperature is lower than a predetermined upper limit temperature, the calculation of the rise in temperature is repeated. When the estimated wire temperature has become equal to or higher than the predetermined upper limit temperature, the electric power supply from the power source to the load is stopped so that the wire is protected. | 10-07-2010 |
20100296218 | ELECTRONIC DEVICE WITH HEATING PROTECTION CIRCUIT AND HEATING PROTECTION METHOD THEREOF - This invention discloses an electronic device with a heating protection circuit and a heating protection method thereof. The electronic device includes a control module, a heating protection circuit, a heating switch module, and a heating module. The control module provides a first control signal and a second control signal via a plurality of control pins, respectively. The heating protection circuit generates a third control signal according to the first control signal and the second control signal. The heating switch module controls the heating module whether to heat according to the third control signal. | 11-25-2010 |
20100315752 | THERMAL PROTECTION CIRCUITS AND STRUCTURES FOR ELECTRONIC DEVICES AND CABLES - Connectors for cables such as a 30-pin connector are provided. The connectors may have thermal protection circuits and may carry a power supply voltage and a ground voltage. The thermal protection circuits may disable the power supply voltage when the temperature of the connector exceeds a threshold value. The connectors may have structures that encourage any dendritic failure to occur in a preferred location. | 12-16-2010 |
20110058298 | Detecting and Preventing Overheating in Power Connectors - A method and apparatus directed to detecting and preventing excessive heating in power connectors is disclosed. In one embodiment, a system includes a power connector having an array of pins. A circuit board, such as a midplane of a blade server chassis, has an array of electrical vias passing through the circuit board that are arranged to receive the array of pins and at least one heat flux sensor positioned on one of the vias at the back of the midplane. The heat flux sensor is configured for generating an electrical signal in relation to an applied heat flux. A controller in communication with the heat flux sensor is configured for powering off the electrical power supply in response to the electrical signal reaching a setpoint corresponding to a selected heat flux threshold. | 03-10-2011 |
20110134578 | Heat actuated interrupter receptacle - Apparatus for detecting an overheating condition at an electrical power device and automatically breaking the circuit when the temperature exceeds a setpoint value. In various configurations the device is a receptacle adapted to be used in a wall mounted box or a receptacle unit that is plugged into an existing receptacle and supported in place by the existing receptacle. A temperature switch is wired parallel to a normally open test switch on a ground fault circuit interrupter or other circuit interrupting device. The temperature switch is responsive to the temperature local to the receptacle, such as is caused by poor connections to or in the receptacle. The temperature setpoint is less than the melting temperature of the insulation of the electrical wiring. Upon actuation of the temperature switch, the circuit interrupting device is latched in a tripped position until the device is reset for reuse. | 06-09-2011 |
20110188166 | PTC Device and Electrical Apparatus Containing the Same - There is provided a PTC device wherein decline in the reliability of the PTC component is suppressed as much as possible. The PTC device includes a PTC component including a laminar PTC element and metal electrodes disposed on both sides thereof; and a metal layer-retaining insulating layer including an insulating layer having a metal layer disposed on one of its main surfaces, wherein one of the metal electrodes of the PTC component is disposed on the metal layer, the two being electrically connected. | 08-04-2011 |
20110199711 | TEMPERATURE PROTECTION SYSTEM FOR ELECTRONIC DEVICES - An electronics system includes an electronic device, a power source and a temperature control switch. An actuator having a shape memory alloy is attached to the temperature control switch and moves the temperature control switch between an open position preventing a current flow between the power source and the electronic device, and a closed position permitting current flow between the power source and the electronic device. The shape memory alloy transforms shapes upon the ambient temperature falling below a low critical temperature or rising above a high critical temperature to move the temperature control switch into one of the closed position to permit current flow to the electronic device or the open position to prevent current flow to the electronics device respectively. | 08-18-2011 |
20110249371 | THERMAL PROTECTION CONTROL METHOD AND SYSTEM - A thermal protection method and system of an Integrated Circuit (IC) are provided, which are applicable to a wireless terminal equipment. The method includes: measuring a temperature value of a protection point; comparing the measured temperature value with a thermal protection temperature threshold; and starting a protection measure when the measured temperature value reaches or exceeds the thermal protection temperature threshold and a duration of reaching or exceeding the thermal protection temperature threshold exceeds a preset time. | 10-13-2011 |
20110310522 | TEMPERATURE PROTECTION CIRCUIT - A temperature protection circuit includes a detection circuit, a comparison circuit, a switching circuit, and a control circuit. When the temperature of an electronic device is below a preset temperature, a detecting voltage signal exceeds a reference temperature signal, and the comparison circuit outputs a control signal to open the switching circuit. The control circuit directs a power circuit to provide voltage to an operating circuit. When a temperature of the electronic device exceeds the preset temperature, the detecting voltage signal is below the reference temperature signal, and the comparison circuit outputs a control signal to close the switching circuit. The control circuit directs the power circuit to stop supplying voltages to the operating circuit. | 12-22-2011 |
20120008245 | SECONDARY THERMAL SENSOR FOR PRIMARY CONDUCTORS - A thermal sensing system for providing thermal protection to an electronic circuit breaker that does not require any additional components. The layout of the conductive traces on the printed circuit board are dimensioned and configured so that the ratio of primary current to primary conductor thermal mass heating is correlated with the ratio of secondary current to secondary thermal mass heating. A voltage at a semiconductor junction in the rectifier behind the secondary transformer is measured, and a temperature or heat is calculated based on the voltage. Because this temperature or heat calculation is correlated with the temperature or heat of the primary conductor, a trip routine can be added based on the measured voltage for thermal protection of the primary conductors. A thermal history of the ‘primary thermal mass’ is also provided for robust thermal protection of the circuit breaker load and primary conductors. | 01-12-2012 |
20120106015 | BATTERY PACK - A battery pack that can quickly transfer heat from a battery cell to a positive temperature coefficient (PTC) to quickly cut off a current when the battery cell is heated to a high temperature. A battery pack includes: a battery cell including a cell tab; a protective circuit module including an internal terminal connected to the cell tab, a PTC connected to the internal terminal, and an interconnection pattern between the internal terminal and the PTC and electrically connecting the internal terminal to the PTC; and a heat transfer member including a surface contacting the interconnection pattern, and opposite sides respectively connected to the internal terminal and the PTC. | 05-03-2012 |
20120194958 | Three-Function Reflowable Circuit Protection Device - A circuit protection device includes a substrate with first and second electrodes connected to the circuit to be protected. The circuit protection device also includes a heater element between the first and second electrodes. A sliding contact is connected by a sensing element to the first electrode, second electrode, and heater element, thereby bridging and providing a conductive path between each. A spring element is held in tension by, and exerts a force parallel to a length of the substrate against, the sliding contact. A flux material is provided around the sensing element. Upon detection of an activation condition, the sensing element releases the sliding contact and the force exerted by the spring element moves the sliding contact to another location on the substrate at which the sliding contact no longer provides a conductive path between the first electrode, second electrode, and heater element. The flux allows the sliding contact to move without dragging the sensing material. | 08-02-2012 |
20120268854 | ELECTRONIC COMPONENT - An electronic component has an integrated protective device which responds in the event of a thermal overload and interrupts a current flow through the component. The protective device has an electrical terminal which may be brought under spring pretension by intrinsic resilience and assumes a mounting position in the pretensioned state and a current interrupting position in the untensioned state. | 10-25-2012 |
20120300353 | NETWORK COMMUNICATION DEVICE - A network communication device for generating dying gasp signals includes a voltage detection circuit, a charging and discharging circuit, a power supply circuit, a central processing unit (CPU), a load circuit, an over-heating detection circuit, and an over-heating protection circuit. The CPU includes a dying gasp detection pin connected to the voltage detection circuit to retrieve a detected voltage of an external power supply, and determines whether the external power supply is off according to the detected voltage, and generates dying gasp signals upon the condition that the external power supply is off. The over-heating protection circuit changes voltage of the dying gasp detection pin of the CPU to make the CPU to generate the dying gasp signals and to turn off the load circuit and the power supply circuit upon the condition that the over-heating detection circuit determines that the network communication device overheats. | 11-29-2012 |
20130003241 | Electronic Safety Device - A method and electronic safety device including a switching element for disconnecting and/or limiting the current consumption of an electrical load, wherein control commands for the switching element are received through a remote control interface, and wherein the switching element is only switched on or off when the thermal load on the switching element is within a permissible range such that there is no longer any need to provide a dedicated relay in electrical systems for remote-controlled switching operations. | 01-03-2013 |
20130027830 | Circuit with a Temperature Protected Electronic Switch - A method can be used for driving an electronic switch integrated in a semiconductor body. A first temperature is measured at a first position of the semiconductor body. A temperature propagation is detected in the semiconductor body. The electronic switch is switched off when the temperature at the first position rises above a first threshold that is set dependent on the detected temperature propagation. | 01-31-2013 |
20130063854 | 3-DIMENSIONAL MULTI-LAYERED MODULAR COMPUTER ARCHITECTURE - A stackable layer is provided for 3-Dimensional multi-layered modular computers. The stackable layer comprises at least one encapsulated chip die. Sets of electrical contacts are provided on each one of the large surfaces of the layer. The encapsulated chip die and the two large opposite surfaces of the layer are substantially parallel. | 03-14-2013 |
20130070382 | UNIVERSAL THERMAL MODULE WIRING CONNECTOR - A universal thermal wiring connector is configured for monitoring ambient and conducted temperatures on all wire and wire terminal connections external to a wiring device, including supply leads and non-metallic outlet box to insure they are operating within an acceptable temperature range. The device is configured to terminate/disconnect the supply source, before the wiring device terminations, when an abnormal overheating temperature is detected. The device: prevents outlet box fires due to excessive overheating; can be incorporated external on standard receptacle or wiring devices; and provides a safer reasonable alternative with minimal added cost per unit. The device includes a wiring assembly consisting of UL listed wire, connectors, and a calibrated thermal fuse that is connected to the exterior screw terminal of a standard receptacle in the field by a licensed electrician or homeowner, or connected to the screw terminal of the receptacle when it is manufactured at the factory. | 03-21-2013 |
20130100568 | Information Handling System Power Supply Automated De-Rating For Power Output And Thermal Constraints - An information handling system power supply dynamically adapts thermal and power output protection constraints based upon thermal and power output conditions measured at the power supply. In the event of changing conditions at the information handling system, such as an increase in ambient temperature or an increase in power consumption, a power constraint adaptive module adjusts constraints at which the power supply will shut down in order to maintain power to an information handling system outside of a normal power and thermal constraint operating envelope for the power supply. | 04-25-2013 |
20130135782 | VARIABLE PRECISION THERMAL SENSOR - A high accuracy on-chip thermal sensor includes an integrated circuit and sensing elements. The thermal sensor finds application in various mobile and battery powered devices and includes a processor that analyzes a measured temperature signal and decides if the thermal sensor operates in low or high power operational mode, or if the device's CPU is to be reset. A method utilizing the thermal sensor includes making comparisons to two threshold temperatures and operating at low power mode below the first threshold temperature, high power mode between the two threshold temperatures and causing reset if the second threshold temperature is exceeded. Low power operational mode includes a lower clock frequency, lower bias current and lower power consumption. Higher power operational mode is used when the upper threshold temperature is being approached and includes a higher data sampling frequency and more accurate temperature control and uses higher power. | 05-30-2013 |
20130148248 | POWER STRIP WITH HEAT PROTECTION FUNCTION - A power strip includes a plug, a main body, a thermo-sensor output unit, a comparison control unit, and a switch unit. The main body includes a number of electrical sockets. The thermo-senor output unit senses a temperature of the cable. When the sensed temperature is greater than a predetermined temperature, the thermo-sensor output unit outputs a voltage signal to the comparison control unit to make the comparison control unit turn off the switch unit to disconnect the plug from the sockets. | 06-13-2013 |
20130170088 | Electromechanical Excess Temperature Protection Element - The invention is an excess temperature protection element for photovoltaic installations. The element has a cylindrical housing closed off with two cover plates, encasing therein a plug-and-socket connection that is certified for photovoltaic installations. The plug connector is connected to the interior face of one cover plate and the socket connector to the interior face of the second cover plate, so that the two connectors are in electrical contact with each other when the housing is closed. A pressure element between the two cover plates biases the plates away from the housing. One of the plates is a releasable plate secured to the housing by a hot-melt material. When the temperature of the PV installation rises above a threshold value, the hot-melt material softens, allowing the pressure element to push the releasable cover plate away from the housing, thereby disconnecting the plug-in connection in the housing. | 07-04-2013 |
20130194710 | THERMAL OVERLOAD PROTECTION APPARATUS - The object of the invention is a thermal overload protection device ( | 08-01-2013 |
20130235501 | Electrical installation, installation kit, and branch off device - An electrical installation with circuit integrity of an electric through line under fire impact. Branch off devices are connected to the through line, and branch lines are connected to the branch off devices. The branch off devices include a thermally triggering disconnect device for providing circuit integrity of the through line under fire impact. The disconnect device is configured to disconnect an electrical connection between the branch line and the through line self-acting when an ambient temperature increases to a predetermined value that is typical for a fire. An installation kit and a branch off device for such an electrical installation. | 09-12-2013 |
20130308240 | ELECTRONIC LOAD FOR TESTING VOLTAGE STABILITY - An electronic load for testing stability of a power voltage of a power source under test (PSUT) includes a voltage supply device, a field effect transistor (FET), an amplification circuit, and a current sampling resistor. The amplification circuit includes a first input, a second input, and an output. The voltage supply device is connected to the first input. The second input is connected to a source electrode of the FET. The output is connected to a gate electrode of the FET. A drain electrode of the FET is connected to the PSUT. One end of the current sampling resistor is grounded, and the other end of the current sampling resistor is connected to the source electrode of the FET and the second input. The voltage supply device outputs a control voltage. The amplification circuit amplifies the control voltage and drives the FET using the amplified control voltage. | 11-21-2013 |
20140133059 | PROTECTIVE DEVICE AND PROTECTIVE MODULE - A protective device includes a substrate, an electrode layer, a metal structure, an outer cover and an arc extinguishing structure. The electrode layer is disposed on the substrate. The electrode layer includes at least one gap. The metal structure is disposed on the electrode layer and located above the gap, and the metal structure has a melting temperature lower than a melting temperature of the electrode layer. The outer cover is disposed on the substrate and covers the metal structure and a portion of the electrode layer. The arc extinguishing structure is disposed between the outer cover and the substrate. A protective module is further provided. | 05-15-2014 |
20140168844 | THERMAL PROTECTION CIRCUIT - A thermal protection circuit has two electrical connection terminals for a device to be protected, and a temperature-dependent switch. The switch is provided with a temperature-dependent switching mechanism, two stationary contacts which are connected to the connection terminals, and a current transfer element, which is arranged on the switching mechanism. The current transfer element is moved by the switching mechanism and comprises two counter contacts, which are electrically connected to one another and in temperature-dependent bearing contact with the two stationary contacts. The thermal protection circuit is provided with a controllable semiconductor valve for AC voltage having two current terminals and a control input. Each of the two current terminals is connected to one of the connection terminals, and the control input is electrically connected to the counter contacts at the current transfer element via the switching mechanism at least when the temperature-dependent switch is closed. | 06-19-2014 |
20140192451 | DEVICE AND METHOD FOR PREVENTING ARC FLASHES - A device for preventing arc flashes in electrical systems is provided. The device may include at least one heat sensor for measuring a temperature of an electrical conductor, and a controller operatively coupled to the at least one heat sensor and configured to arrest current in the electrical conductor if the measured temperature exceeds a predefined threshold temperature. | 07-10-2014 |
20140293495 | PTC Device - The present invention relates to a new PTC device having a configuration with which protrusion of solder paste and/or an excess portion of epoxy resin do not adversely affect a jig. Such PTC device | 10-02-2014 |
20140340802 | Detection Of Active-Material Overheat Conditions Without Temperature Sensor - A system, for use in protecting an active-material actuator from overheating without using a temperature sensor. The system includes an active material being transformable between a first state and a second state in response to a pre-determined stimulus, and being pre-tensioned to at least a pre-determined threshold, yielding the pre-tensioned active material. The system also includes a processing unit configured to perform operations comprising obtaining a value for electrical resistance of the pre-tensioned active material, estimating, based on the electrical resistance obtained, an strain value for the active material, yielding an estimated strain value, and obtaining an actual strain value for the active material. The operations also include determining a difference between the estimated strain value estimated and the actual strain value and determining, based on the difference determined, whether an overheating condition exists for the active material. | 11-20-2014 |
20140340803 | METHOD OF MANAGING AN ELECTRONIC CIRCUIT INCLUDING A THERMAL PROTECTION DEVICE AND CORRESPONDING ELECTRONIC CIRCUIT - A method for managing an electronic circuit ( | 11-20-2014 |
20140355162 | CONTROL DEVICE FOR A VEHICLE - A control device suitable for use in a vehicle includes a circuit board and a spring element. The circuit board includes a circuit element electrically connected thereat. The spring element is engaged with the circuit element and biased or urged towards the circuit element to exert a force at the circuit element in a direction generally parallel to a surface of the circuit board. The circuit element is electrically connected at the circuit board via a solder joint. When a temperature at the solder joint exceeds a threshold temperature, the spring element moves the circuit element along the surface of the circuit board to break the electrical connection at the solder joint. | 12-04-2014 |
20140362489 | ELECTRONIC APPARATUS - An electronic apparatus has an operation unit, a switchover unit, a state detector, and a control unit. The operation unit is disposed on an apparatus main body. The switchover unit connects or disconnects an output route that is a route for an output signal from the operation unit. The state detector detects a moving body. Based on a detection result by the state detector, the control unit controls the switchover unit to connect or disconnect the output route. | 12-11-2014 |
20140362490 | Semiconductor Device and Control Method Thereof - A semiconductor device includes a switching element chip, in which a switching element is formed; a first sensing element, which is provided in the switching element chip and is configured to detect first output voltage based on an operating current of the switching element; a second sensing element, which is provided outside the switching element chip and is configured to detect second output voltage based on the operating current of the switching element; and a control circuit, which detects the operating current based on the second output voltage and interrupts the switching element, based on the first output voltage of the first sensing element and the detected operating current, when the switching element is overheated. | 12-11-2014 |
20150029630 | PTC Device - The present invention provides a PTC device having a laminate which includes a PTC component having a laminar PTC element defined by main surfaces which are facing each other, laminar electrodes extending on the main surfaces, and a first insulation layer, the PTC component, and a second insulation layer laminated in this listed order. The laminate has a first end and a second end, and a first side electrode and a second side electrode are disposed on the first end and the second end, respectively; one of laminar electrodes of the PTC component extends while being separated from the first side electrode and the second side electrode; the other is separated from the first end, and extends to the second end and is electrically connected to the second side electrode. At least the first side electrode extends at the first end along an entirety of a thickness direction of the laminate and further extends on a first edge portion of one of the insulation layers; and the first edge portion has a through-hole which reaches the one laminar electrode. The through-hole has an electrically conductive element which electrically connects the one laminar electrode and the first side | 01-29-2015 |
20150029631 | PROTECTOR FOR ELECTRICITY SUPPLY CIRCUIT - A protector for an electricity supply circuit includes: a power switch capable to switch between connection and disconnection of the electricity supply circuit; a controller configured to output a switching command signal to the power switch in accordance with an input signal; and a current detector for detecting current flowing to the electricity supply circuit. The controller includes: a timer for counting the time that passes after a load has been turned off, when the load is turned off by the power switch; and a mode switching unit configured to switch the controller to a sleep mode when a predetermined time is counted by the timer. | 01-29-2015 |
20150116882 | APPARATUS AND METHOD FOR TIME-DELAYED THERMAL OVERLOAD PROTECTION - Apparatus and methods for time-delayed thermal overload protection are provided. In one aspect, an integrated circuit includes a primary circuit disposed in a primary circuit region on a substrate, and a thermal protection circuit disposed in a thermal protection circuit region on the substrate and in thermal communication with the primary circuit. The thermal protection circuit includes a temperature sensing circuit configured to sense a temperature of the thermal protection circuit region and to activate a temperature warning signal when the temperature exceeds a temperature threshold level. The thermal protection circuit additionally includes a time delay circuit configured to activate a shut off signal to disable at least a portion of the primary circuit when the temperature warning signal is active for a duration exceeding a time delay. | 04-30-2015 |
20150116883 | ELECTRIC-WIRE PROTECTION DEVICE - An electric-wire protection device that protects an electric wire by cutting off power to the wire when its temperature is elevated above a predetermined value is presented. The device includes switching means to control the conduction of power to the wire, current measuring means to measure a current in the wire, environment temperature detecting means to detect a temperature of the environment surrounding the wire, electric-wire temperature calculating means to calculate the temperature of the wire using the value of the current in the wire and the environment temperature, limiting means to stop the conduction of power to the wire when the temperature is greater than or equal to a predetermined value, peripheral component current measuring means to measure the current flowing to a component at the periphery of the environment temperature detecting means, thermal influence acquisition means to obtains an amount of temperature increase caused by the component at the environment temperature detecting means, and environment temperature correcting means to correct the environment temperature based on the amount of temperature increase. | 04-30-2015 |
20150116884 | ELECTRONIC SAFETY SHUTOFF WITH DUAL REDUNDANCY - Electronic safety shutoff with dual redundancy is provided for use in combination with an electronic device to prevent fire, explosion, electrocution or shock. In one embodiment, four sensors, including two smoke sensors and two temperature sensors provide input to the logic gate circuit. The logic gate circuit determines the output signal to maintain power or interrupt power. Any combination of two or more sensors triggering will activate a power interrupting signal by the logic gate circuit, thereby activating an emergency power shutoff. | 04-30-2015 |
20150333497 | Protection Element - The present invention provides a protection device which comprises: a laminar element | 11-19-2015 |
20150340857 | Thermal Protection Device - According to one aspect, a thermal protection device is provided having an electrical input for receiving input DC power and an electrical output for connection to a load. A heating circuit is coupled to the electrical input for developing one of first and second different heat magnitudes depending upon a temperature magnitude in the housing. An additional circuit is in thermal communication with the heating circuit for providing output DC power to the electrical output when the first heat magnitude is developed and for interrupting the output DC power when the second heat magnitude is developed. | 11-26-2015 |
20150377949 | Utility Meter with Temperature Sensor - A utility meter includes at least one primary coil, a temperature sensor, and a metrology circuit. The at least one primary coil is configured to be operably coupled to a meter socket to receive heat energy from the meter socket. The temperature sensor is operably coupled to the at least one primary coil and is configured to generate a sensor signal based on a temperature of the meter socket. The metrology circuit is operably coupled to the temperature sensor and is configured (i) to generate metering data based on a measurement of electricity consumption, and (ii) to generate a service signal in response to the sensor signal indicating that the temperature of the at least one primary coil is equal to or greater than a predetermined temperature threshold. The predetermined temperature threshold corresponds to a temperature indicative of the meter socket being due for maintenance. | 12-31-2015 |
20160003688 | ARRANGEMENT FOR TESTING A DEVICE FOR PROTECTING AN ELECTRONIC COMPONENT AGAINST OVERHEATING AND PERTAINING METHOD - The invention relates to an assembly and a method for testing a device in order to protect an electronic component against overheating, wherein the device comprises a temperature sensor that is in thermal connection with the electronic component, and a first control circuit for the electronic component ( | 01-07-2016 |
20160099560 | CIRCUIT APPARATUS AND ELECTRONIC APPLIANCE - With an IC including a driver that drives a large current, its characteristics may be deteriorated or the IC may be broken by heat generated by the large current. By providing a plurality of sensors and disposing some of the sensors so as to be close to an output driver that flows a large current, which is a source of heat generation, an increase in the temperature of the IC can be rapidly detected, and the deterioration of the characteristics of the IC can be prevented by accurately actuating an overheating protection function based on a result of detection. Alternatively, breakage of the IC can be prevented by suppressing overheating. | 04-07-2016 |
20160105016 | POSITIVE TEMPERATURE COEFFICIENT CIRCUIT PROTECTION DEVICE - A PTC circuit protection device includes a PTC polymer material and two electrodes attached to the PTC polymer material. The PTC polymer material includes a polymer matrix and a particulate conductive filler dispersed in the polymer matrix, the conductive filler including conductive non-carbonaceous particles and conductive carbon particles. The conductive carbon particles have an average particle size ranging from 40 to 100 nm, a DBP oil-absorption ranging from 60 to 120 cc/100 g, and a volatile content ranging from 0.2 to 2.0 wt %. The conductive carbon particles are in an amount ranging from 1 to 14 wt % based on the total weight of the PTC polymer material. | 04-14-2016 |
20160131535 | TEMPERATURE DETECTION CIRCUIT AND SEMICONDUCTOR DEVICE - Provided is a temperature detection circuit having less manufacturing fluctuations in detection temperature and capable of easily adjusting the manufacturing fluctuations in detection temperature. The temperature detection circuit includes: a constant current circuit configured to output a constant current; a voltage-controlled current circuit, which is controlled by a voltage output from a heat sensitive element and is configured to output a current corresponding to temperature; and a current comparator configured to compare the constant current and the current corresponding to temperature, and output a detection signal indicating that a predetermined temperature is detected. Temperature characteristics of the constant current circuit and temperature characteristics of the voltage-controlled current circuit have a correlation with each other. The temperature detection circuit is configured to detect temperature based on a result of comparing the output current of the constant current circuit and the output current of the voltage-controlled current circuit. | 05-12-2016 |
20160164276 | OVERHEAT PROTECTION DEVICE, OVERHEAT PROTECTION METHOD AND ELECTRICAL DEVICE - The present disclosure provides an overheat protection device, an overheat protection method and an electrical device. The overheat protection device is used in an electrical device and includes a transparent window unit and an optically-controlled switch. The transparent window unit is made of a transparent material and arranged on a housing of the electrical device, and an inner surface of the transparent window unit is coated with a thermochromatic material film. The optically-controlled switch is arranged inside the housing of the electrical device and exposed to an ambient light beam through the transparent window unit. The optically-controlled switch is configured to turn off the electrical device when a spectrum of the received light beam is within a predetermined spectral range. | 06-09-2016 |
20190148893 | POWER CONNECTOR | 05-16-2019 |