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MOBILE PHONE BATTERY CHARGING DEVICE INCLUDING SOLAR BATTERY UNIT, AND MOBILE PHONE BATTERY CHARGING METHOD
MOBILE PHONE BATTERY CHARGING DEVICE INCLUDING SOLAR BATTERY UNIT, AND MOBILE PHONE BATTERY CHARGING METHOD
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机译:包括太阳能电池单元的移动电话电池充电装置以及移动电话电池充电方法
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摘要
PURPOSE: A device and a method are provided to prevent loss of data stored in a RAM even when a backup battery is discharged upon elapse of a predetermined time after discharge of a main power source. CONSTITUTION: A mobile phone battery charging device comprises a diode(D1) for preventing back current by permitting the current generated from a main power source(10) for supplying power to a mobile phone terminal to flow to a backup battery(30); a resistor(R1) connected to the diode such that the resistor adjusts the back flow prevented current; the backup battery for receiving the current adjusted by the resistor; and a solar battery unit(200) having a backup battery charging path added thereto in parallel, wherein the solar battery unit supplies the current generated by using the light radiated from sun or a fluorescent lamp, to the backup battery through the additional path.
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