发明名称 |
THERMALLY LIMITED BATTERY PROTECTION AND CHARGING CIRCUIT |
摘要 |
This invention includes a thermally stable, low-cost charging circuit for rechargeable batteries. The circuit includes a thermal control circuit that employs a temperature dependent component such as a thermistor or positive temperature coefficient device. The temperature dependent device is thermally coupled to a charging pass element, which is typically a power transistor. When the transistor enters a danger zone, which is a region of operation characterized by elevated power dissipation in the pass element, the thermal control circuit is actuated to regulate the pass element in a constant power mode until the circuit exits the danger zone.
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申请公布号 |
US2004095097(A1) |
申请公布日期 |
2004.05.20 |
申请号 |
US20020185095 |
申请日期 |
2002.06.29 |
申请人 |
OGLESBEE JOHN W.;HERRMANN JOHN E.;GEREN MICHAEL D.;DEMURO DAVID M.;BOYER ROGER L. |
发明人 |
OGLESBEE JOHN W.;HERRMANN JOHN E.;GEREN MICHAEL D.;DEMURO DAVID M.;BOYER ROGER L. |
分类号 |
H02J7/00;(IPC1-7):H02J7/04;H02J7/16 |
主分类号 |
H02J7/00 |
代理机构 |
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