发明名称 |
Charge/discharge control circuit and charging type power supply device |
摘要 |
Provided are a charge/discharge control circuit and a charging type power supply device which include an intermediate terminal disconnection detection circuit having low current consumption. In the charge/discharge control circuit, a constant current circuit serving as an intermediate terminal disconnection detection circuit is provided to a terminal to which secondary batteries are connected, and includes a depletion type metal oxide semiconductor (MOS) transistor and a resistor connected between a gate terminal and a source terminal of the depletion type MOS transistor. |
申请公布号 |
US8390256(B2) |
申请公布日期 |
2013.03.05 |
申请号 |
US20100869128 |
申请日期 |
2010.08.26 |
申请人 |
SANO KAZUAKI;SAKAMOTO WATARU;SEIKO INSTRUMENTS INC. |
发明人 |
SANO KAZUAKI;SAKAMOTO WATARU |
分类号 |
H02J7/00 |
主分类号 |
H02J7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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