发明名称 |
AUXILIARY POWER SOURCE DEVICE FOR VEHICLE AND OVERCURRENT PROTECTION METHOD |
摘要 |
A vehicle auxiliary power supply device includes a resonant inverter circuit 1 that converts DC input into a desired AC voltage and outputs the AC voltage and a control unit 10. The control unit 10 includes a resonance-time managing unit 13 managing resonance time of current flowing in the resonant inverter circuit 1, a gate-off-command generating unit 12 detecting overcurrent flowing in the resonant inverter circuit 1 based on detected current of a current detector CT1, and, when the overcurrent is detected, generating, based on detected current of the current detector CT1 and resonance time managed by the resonance-time managing unit 13, a gate-off command to turn off switching elements HGU1 and HGV2 included in the resonant inverter circuit 1 after the elapse of time after which current flowing in the switching elements HGU1 and HGV2 becomes zero for the first time, and a gate-signal generating unit 14 generating a gate signal that controls the switching elements HGU1 and HGV2 to be turned off when the gate-off command is input. |
申请公布号 |
EP2787626(B1) |
申请公布日期 |
2017.03.01 |
申请号 |
EP20110876778 |
申请日期 |
2011.11.28 |
申请人 |
Mitsubishi Electric Corporation |
发明人 |
ACHIHARA, Masato;HARADA, Ryotaro |
分类号 |
H02M7/48;B60L1/00;B60L3/00;B60L3/04;B60L11/18;H02M1/00;H02M1/32;H02M7/538 |
主分类号 |
H02M7/48 |
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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