发明名称 |
Control apparatus for a vehicular alternator |
摘要 |
A control apparatus for a vehicular alternator can improve its reliability and reduce its cost by attenuating a field current of a rotor coil with a simple circuit. The apparatus includes an armature coil, a rectifier circuit, a rotor coil and a voltage control circuit. The rectifier circuit has an AC input terminal, a positive and a negative output terminal. The voltage control circuit controls a generation voltage to be substantially constant by interrupting a field current when a generation voltage exceeds a first predetermined voltage, while passing the field current when the generation voltage is equal to or lower than the first predetermined voltage. A circulation circuit comprising a diode and a current attenuation element serves to circulate the field current upon interruption thereof. A short-circuiting circuit short-circuits the current attenuation element. A short-circuit control circuit opens the short-circuiting circuit when the generation voltage exceeds a second predetermined voltage.
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申请公布号 |
US2007069697(A1) |
申请公布日期 |
2007.03.29 |
申请号 |
US20060367315 |
申请日期 |
2006.03.06 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
NISHIMURA SHINJI;MIYAJI WAKAKI |
分类号 |
H02H7/06;H02P9/00;H02P11/00 |
主分类号 |
H02H7/06 |
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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