Patent application number | Description | Published |
20120169311 | Current Share Configuration in a Power Converter System - A power converter system is provided, which comprises a first voltage converting module for converting an input voltage to an output voltage, and a second voltage converting module for converting the input voltage to an output voltage, the second voltage converting module being connected in parallel with the first: voltage converting module. The power converter sys tem also includes at least one signalling line between the first voltage converting module and the second voltage converting module, and a current share controller operatively connected to communicate with the first and second voltage converting modules using the Power Management Bus protocol to establish a master- slave relationship between the first and second voltage converting modules, comprising a master voltage converting module and a slave voltage converting module. The first and second voltage converting modules are arranged to operate in a current share configuration so as to share a load current of the power converter system. The master voltage converting module is arranged to determine its output current and send a signal indicative of its output current to the slave voltage converting module via the at least one signalling line. The slave voltage converting module is arranged to adjust its output current in dependence upon the signal from the master voltage converting module. | 07-05-2012 |
20120200331 | DIGITAL CONTROL UNIT HAVING A TRANSIENT DETECTOR FOR CONTROLLING A SWITCHED MODE POWER SUPPLY - A switched mode power supply (SMPS) comprising a feedback unit, voltage feed forward (VFF) compensation signal generator and a transient detector. A VFF compensation signal is only applied to the output of the feedback unit when a transient is detected by the transient detector on the input voltage of the SMPS, thereby saving power and computation time. The transient detector comprises a first comparator to detect that a positive transient has occurred if a difference signal is greater than a positive threshold level; a second comparator to determine if the difference signal is within a predetermined range of positive values and output a result that indicates if the difference signal is within the predetermined range of positive values; and a first calculator to detect that a positive transient has occurred if, out of a first predetermined number of consecutive results of the output of the second comparator, there is at least a second predetermined number of results indicating that the difference signal is within the predetermined range of positive values. The transient detector comprises further features for similarly detecting a negative transient. | 08-09-2012 |
20120287681 | Switching Delay Controller for a Switched Mode Power Supply - A switching delay controller ( | 11-15-2012 |
20120319504 | CONTROL OF DYNAMIC BUS VOLTAGE IN AN INTERMEDIATE BUS ARCHITECTURE POWER SYSTEM - To reduce power loss in an intermediate bus architecture power system, embodiments of the present invention provide an intermediate bus converter which converts an input voltage to an intermediate bus voltage using a converting unit; receives a signal indicative of an output of a converting unit; determines an intermediate bus voltage to reduce power loss in dependence upon the signal indicative of an output of the converting unit; generates a control signal to control the converting unit to convert the input voltage to the determined intermediate bus voltage; and generates an intermediate bus voltage in dependence upon the control signal. | 12-20-2012 |
20130141945 | Start-Up Procedure For An Isolated Switched Mode Power Supply - An isolated switched mode power supply, SMPS, comprises a switching controller operable to generate start-up switching control signals during start-up of the isolated SMPS, and operational switching control signals of period T during subsequent operation of the isolated SMPS. The SMPS further comprises a transformer having a primary winding and a full-bridge drive circuit arranged to drive the primary winding of the transformer in response to the switching control signals. The full-bridge drive circuit has: a first switching element and a boot-strap driving circuit arranged to switch the first switching element in response to the switching control signals, the boot-strap driving circuit having a boot-strap capacitor. The full-bridge drive circuit further comprises a second switching element connected to the first switching element and to the boot-strap driving circuit, and arranged to conduct a current to charge the boot-strap capacitor when switched ON in response to the switching control signals. The switching controller is operable to start up the isolated SMPS by: determining a duty cycle D for the operational switching control signals based on a voltage an output of the isolated SMPS and generating the start-up switching control signals comprising a first voltage pulse of duration P | 06-06-2013 |
20130343094 | Controlling a Switched Mode Power Supply with Maximised Power Efficiency - A control circuit for a switched mode power supply (SMPS) has an input voltage reference voltage generator arranged to receive a signal indicative of an input voltage of the SMPS and is arranged to generate a reference signal directly proportional to the input voltage. An error signal generator of the control circuit is arranged to receive a signal indicative of an output voltage of the SMPS and arranged to generate an error signal based on the reference signal generated by the input reference voltage generator and based on the output voltage of the SMPS. A duty cycle control signal generator of the control circuit is arranged to generate a control signal, to control the duty cycle of the SMPS, in dependence upon the error signal. | 12-26-2013 |
20150029760 | VOLTAGE FEED-FORWARD COMPENSATION AND VOLTAGE FEEDBACK COMPENSATION FOR SWITCHED MODE POWER SUPPLIES - A digital control unit generates a control signal to control a duty cycle of a switched mode power supply such that a faster response to an input voltage transient is achieved. The digital control unit comprises a feedback compensator, a feed forward compensator, a transient detector, and a controller. The transient detector receives a signal indicative of the input voltage of the switched mode power supply and detects transients on the received signal. The feedback compensator receives a signal indicative of the output voltage of the switched mode power supply and adjusts the control signal. The feed forward compensator receives a signal indicative of the input voltage of the switched mode power supply, performs a relatively fast, but coarse, adjustment of the control signal, and then performs a more accurate, but relatively slow, adjustment of the control signal. | 01-29-2015 |
Patent application number | Description | Published |
20130205498 | CANE HOLDER - A cane holder comprising one or more horizontal perpendicular plates, optionally one or more horizontal parallel plates, and a pair of support members for holding a cane, wherein the distance between the support members can be adjusted to fit the length of the cane. | 08-15-2013 |
20140047640 | APPARATUS FOR THE BEDSIDE STORAGE OF MOBILITY DEVICES - A system and method for storing mobility devices adjacent to a bed-frame. The apparatus comprising a planar surface, located between a mattress and a supporting structure, and at least one handle for receiving the mobility device. The apparatus' planar surface, handles, and method of fastenings are all able to be customized based upon the desired features, including: size, weight, luminosity, ease of sterilization, and dimensions of the intended mobility device. | 02-20-2014 |
Patent application number | Description | Published |
20080230418 | End Plug for a Roll of Material, Roll of Material and Retention Mechanism in a Dispenser - An end plug for a roll of material to be inserted into a retention mechanism, includes a receiving portion to fit into a hollow core of the roll of material; and a bearing member to fit into the retention mechanism. The bearing member includes a bearing pin having a counter surface facing the receiving portion; and a locking surface for locking the end plug in an end position in the retention mechanism, the locking surface being arranged between the receiving portion and the bearing pin, the locking surface having at least one portion inclined with respect to the longitudinal axis of the bearing pin by an angle to the longitudinal axis of the bearing pin in the range of 117° to 141°. A retention mechanism in a dispenser for retaining the end plug of an exchangeable roll of material is also disclosed. | 09-25-2008 |
20080283657 | End Flug for a Roll of Material, Roll of Material and Retention Mechanism in a Dispenser - An end plug for a roll of material to be inserted into a retention mechanism, includes: a receiving portion for insertion in the roll, an end face for contacting the mechanism and a bearing member for insertion into the mechanism. The bearing member includes a bearing pin having a counter surface facing the end face and at least one portion for locking the end plug in an end position in the mechanism, the locking portion being positioned within a zone defined by a first surface extending towards the end face from an intersection position with the bearing pin, the first surface being inclined with respect to the longitudinal axis of the bearing pin by an angle of 117 and a second surface extending towards the end face from the intersection position, the second surface being inclined with respect to the axis of the bearing pin by an angle of 141. | 11-20-2008 |
20130105614 | DISPENSER FOR ROLL OF ABSORBENT PAPER TISSUE OR NONWOVEN MATERIAL | 05-02-2013 |
20130105618 | DISPENSER FOR A ROLL OF ABSORBENT PAPER TISSUE OR NONWOVEN MATERIAL | 05-02-2013 |
20130200201 | DISPENSER FOR ABSORBENT PAPER TISSUE OR NONWOVEN MATERIAL - A portable refillable dispenser for absorbent paper, tissue or nonwoven material, has a lower housing portion and an upper housing portion. The upper housing portion is connected via a first hinge to the lower housing portion, wherein the upper and lower housing portions, in a closed position, form a compartment for the absorbent tissue or nonwoven material and an inner dispensing opening there between and, in an open position, allow refilling of the dispenser. The dispenser has a lid connected with the upper and lower housing portions for holding the upper and lower housing portions together. The lid at least partially covers the inner dispensing opening from at least one direction. The lid is provided with an outer dispensing opening. The absorbent paper, tissue or nonwoven material is dispensable via the inner and outer dispensing openings. | 08-08-2013 |
20140027473 | DISPENSING MECHANISM AND A DISPENSER - A dispensing mechanism for a liquid container is arranged in liquid communication with an outlet mechanism. The dispensing mechanism is adapted to translate a user force applied to a user operated portion into a transfer force applied from a user lever to an actuation part. A relationship between a first length and a second length forms a lever ratio. The first length extends from a first pivot axis to a user operated portion and the second length extends from the first pivot axis to a point of action of the transfer force on the actuation part. The lever ratio is adapted to increase from a non-actuated position over at least the first 50% of a dispensing stroke of the actuation part such that the transfer force increases over the at least first 50% of the dispensing stroke when a constant force is applied to the user operated portion. | 01-30-2014 |
20140203133 | DISPENSER WITH A LOCK - A dispenser for dispensing a washroom product, the dispenser including an outer casing hingeably or detachably attached to a back portion. The dispenser includes a compartment between the outer casing and the back portion for housing the washroom product to be dispensed. The dispenser further includes a dispensing opening and the dispenser includes inner locking means positioned inside the compartment. | 07-24-2014 |
20150150423 | DISPENSING UNIT AND DISPENSER - A dispensing unit and a dispenser are provided. The dispensing unit is adapted for use with continuous web material. The dispensing unit comprises a first roller arranged to rotate about a first axis and a second roller arranged to rotate about a second axis. A web path is provided through the dispensing unit and a portion of the web path includes a web passage defined between the first roller and the second roller. The first roller is displaceable between at least a first position and a second position, wherein a first distance is defined between the first roller and the second roller when the first roller is arranged in the first position, and a second distance is defined between the first roller and the second roller when the first roller is arranged in the second position. | 06-04-2015 |