发明名称 |
Charging generator and voltage regulator therefor |
摘要 |
The object of the invention is to provide a charging generator 1 which can avoid occurrence of overvoltage due to failure of equipment, which comprises: an a.c. generator 10 having armature windings 10a, 10b, 10c and a field winding 10d for generating an a.c.; a rectifier 11 having a plurality of power zener diodes 11a-11f having an intrinsic breakdown voltage Vz for converting the a.c. output from the armature windings to a d.c.; a current inhibit means which receives the d.c. output from the rectifier via field winding 10d and inhibits a field current which flows through the field winding; a voltage detection means for detecting a voltage of the d.c. output from the rectifier; and a voltage regulator 13, which includes a protection control means for controlling the current inhibit means in accordance with a result of judgment which is larger between a detected value of the d.c. voltage and a predetermined protection cut-off voltage VB, for regulating the d.c. voltage in the vicinity of the protection cut-off voltage VB by inhibiting the field current, and wherein the relationship between breakdown voltage Vz and protection cut-off voltage is set Vz>VB.
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申请公布号 |
US5719488(A) |
申请公布日期 |
1998.02.17 |
申请号 |
US19960774019 |
申请日期 |
1996.12.27 |
申请人 |
HITACHI, LTD.;HITACHI CAR ENGINEERING CO., LTD. |
发明人 |
MASHINO, KEIICHI;MAEDA, YUJI;HIKITA, SAKAE |
分类号 |
H02J7/16;B60R16/02;B60R16/03;H02P9/00;H02P9/10;H02P9/14;H02P9/30;(IPC1-7):H02J7/14 |
主分类号 |
H02J7/16 |
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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