| 摘要 |
PROBLEM TO BE SOLVED: To provide a charger wherein a rapid increase in temperature of a battery can be suppressed even when a charging circuit and the battery are disposed close to each other. SOLUTION: A power receiving device 5A is equipped with a DC-DC converter IC27 that converts and outputs DC voltage inputted from a power receiving coil 10, an output voltage detection circuit unit 29 for detecting the converted DC voltage by means of resistors R2 and R3, a current detection circuit unit 30A for detecting a charging current Iout to be supplied from the output voltage detection circuit unit 29 to a load by means of resistors R4 to R8, each including a temperature-sensitive element whose circuit constant changes with generation of heat from the load. On reception of detection results from the output voltage detection circuit unit 29 and the current detection circuit unit 30A, a charging control circuit 28 controls the charging of the load so that the charging current Iout may be reduced with generation of heat from the load. COPYRIGHT: (C)2010,JPO&INPIT
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