| Patent application number | Description | Published |
|---|
| 20080225563 | METHOD AND APPARATUS TO CONTROL VOLTAGE CONVERSION MODE - A method and apparatus to control a voltage conversion mode in a voltage converter are provided. The apparatus to control a voltage conversion mode includes: a voltage converter which converts an input voltage to an output voltage and having a plurality of voltage conversion modes; an input sensor which detects an input current value that is input to the voltage converter from a voltage source; an output sensor which detects an output current value that is output to a load from the voltage converter; and a controller which determines a power efficiency of the voltage converter based on the input and output current values and which switches between the voltage conversion modes of the voltage converter according to the detected power efficiency. Accordingly, an efficiency of voltage conversion is maximized, and a usage time of a mobile device can be lengthened. | 09-18-2008 |
| 20080252261 | BATTERY CHARGING APPARATUS, BATTERY PACK, BATTERY CHARGING SYSTEM, AND BATTERY CHARGING METHOD - A battery pack charging method and battery charging apparatus including: a plurality of charge units which charge respective battery cells of the battery pack, by outputting pulse currents, generated from a supplied DC voltage, in response to enable signal; and a plurality of signal detection units to detect a falling edge of the pulse currents and to output the enable signals to the charge units. | 10-16-2008 |
| 20090151765 | ASSISTANT POWER SUPPLY UNIT, POWER SUPPLIER HAVING ASSISTANT POWER SUPPLY UNIT, ELECTRONIC DEVICE HAVING POWER SUPPLY UNIT, AND METHOD OF OPERATING ELECTRONIC DEVICE USING POWER SUPPLIER IN POWER-SAVING MODE - Provided are, a power supplier including an assistant power supply unit, an electronic device including the power supplier, and a method of operating the electronic device using the power supplier in a power-saving mode. The assistant power supply unit includes: a heat source to generate heat during operation of the electronic device; a cooler to dissipate the heat generated by the heat source; a thermoelectric generator interposed between the heat source and the cooler; and a secondary battery to store power generated by the thermoelectric generator. | 06-18-2009 |
| 20090283124 | METHOD AND APPARATUS FOR ELECTRIC POWER SUPPLY USING THERMOELECTRIC CONVERSION - An electric power supply method and apparatus using thermoelectric conversion include an electric power supply apparatus that converts thermal energy, which is generated from a plurality of thermal sources of a device when the device operates using electric power stored in a first power source unit that supplies external power to the device, into electricity; stores the obtained electricity in a second power source unit; and supplies the stored electricity to the device. Accordingly, it is possible to recycle thermal energy generated when the device operates, thereby minimizing consumption of electric power in the device. | 11-19-2009 |
| 20090283125 | METHOD AND APPARATUS FOR CHARGING THERMOELECTRICITY USING A PLURALITY OF THERMOELECTRIC GENERATORS - A method of and an apparatus implementing the method for charging a power supply device by using a plurality of thermoelectric generators includes generating electricity by converting heat generated in each of a plurality of heat sources into electricity, and charging a power supply device by connecting the generated electricity to a charging unit at different times, thereby efficiently charging the power supply device using the electricity generated in the plurality of thermoelectric generators. | 11-19-2009 |
