SOLUM CO., LTD. Patent applications |
Patent application number | Title | Published |
20160111955 | CONVERTER - Disclosed herein is a converter including a switching unit, an energy storage unit for storing energy from a direct current (DC) input voltage and then generating an output voltage according to a switching operation of the switching unit, and a switching controller for controlling the switching unit to selectively execute a first operation mode for turning on the switching unit at a fixed frequency or a second operation mode for turning on the switching unit when a voltage between one end and the other end of the switching unit reaches a zero point of a resonance waveform, wherein the switching controller includes an operation mode selection unit for selectively executing the first operation mode or the second operation mode according to whether the voltage between one end and the other end of the switching unit resonates. | 04-21-2016 |
20160111412 | ESD PROTECTION CIRCUIT - An electrostatic discharge (ESD) protection circuit may include an n-channel metal oxide semiconductor (NMOS) having a drain connected to a power terminal and a source and a gate connected to a ground terminal, a capacitor connected to the drain and a bulk terminal of the NMOS in parallel, and a plurality of series-connected diodes having anodes of one ends thereof connected to the bulk terminal and cathodes of the other ends thereof connected to the ground terminal. | 04-21-2016 |
20160105104 | SWITCHING CONTROLLING CIRCUIT, CONVERTER USING THE SAME, AND SWITCHING CONTROLLING METHOD - A converter includes a switching unit; an energy storage unit storing energy from DC input power and then generating an output voltage, depending on a switching operation of the switching unit; and a switching control unit turning on the switching unit when a voltage between one terminal and the other terminal of the switching unit reaches a lowest point of a resonance waveform. The switching control unit includes a voltage detection unit detecting the voltage between the one terminal and the other terminal at the time of the resonance waveform; a first signal output unit outputting a first signal when the voltage detected by the voltage detection unit reaches a change point of a slope corresponding to the lowest point of the resonance waveform; and a switching driving unit turning on the switching unit in response to the first signal. | 04-14-2016 |
20160105103 | SWITCHING CONTROLLING CIRCUIT, CONVERTER USING THE SAME, AND SWITCHING CONTROLLING METHOD - The converter includes: a switching unit; an energy storing unit storing energy from direct current input power and then generating an output voltage according to a switching operation of the switching unit; and a switching controlling unit turning on the switching unit when a voltage between one end of the switching unit and the other end thereof reaches a zero point of a resonance waveform, wherein the switching controlling unit includes: a voltage detecting unit detecting the voltage one end of the switching unit and the other end thereof in case of a resonance waveform; a first comparator comparing the voltage detected by the voltage detecting unit with a predetermined first reference voltage corresponding to the zero point of the resonance waveform and outputting a first signal according to a comparison result; and a switching driving unit turning on the switching unit in response to the first signal. | 04-14-2016 |
20160104397 | ELECTRONIC INFORMATION LABEL ACCESSORY - Disclosed is an electronic information label that electronically displays information, and more particularly an electronic information label (EIL) accessory that is attached to an electronic information label to promote products separately from the electronic information label. The EIL accessory includes a space for inserting and fixing the electronic label, and may externally emit light for product promotions. The promotion function of the electronic labels may be complemented by providing visual and auditory prompts to attract customers' attention. | 04-14-2016 |