发明名称 |
Battery charger including a comparator |
摘要 |
A charging signal Vi responding to a charging current is inputted to one input terminal (−) of an operational amplifier 95 forming a comparator and a setting signal Vr corresponding to a setting current value is inputted to the other input terminal (+) of the operational amplifier 95. When the charging signal Vi is not higher than the setting signal Vr, a charging stop signal is generated from the output terminal of the operational amplifier 95 to interrupt a switch unit 4. A starting signal Vcc larger than the setting signal Vr applied to the other input terminal (+) is applied to the one input terminal (−) of the operational amplifier 95 through a condenser 94 till a prescribed time elapses from the start of a charging operation to generate a charging start signal from the output terminal of the operational amplifier 95 and electrically conduct the switch unit 4.
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申请公布号 |
US8344696(B2) |
申请公布日期 |
2013.01.01 |
申请号 |
US20070281233 |
申请日期 |
2007.03.02 |
申请人 |
HITACHI KOKO CO., LTD.;ARADACHI TAKAO;FUNABASHI KAZUHIKO |
发明人 |
ARADACHI TAKAO;FUNABASHI KAZUHIKO |
分类号 |
H02J7/04;H02J7/16 |
主分类号 |
H02J7/04 |
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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