发明名称 |
ELECTROMAGNETIC COIL DRIVING CONTROL DEVICE |
摘要 |
The present invention is to provide a magnet coil drive control device that can efficiently suppress conduction noise while reducing the capacitance of a capacitor. A capacitor and an impedance element are arranged in series on the connecting line connecting the positive electrode line and the negative electrode line of a DC power supply, the connecting line between the capacitor and the impedance element is connected to one end of a magnet coil via a freewheeling diode, and the portion between the freewheeling diode and the one end of the magnet coil is connected to the positive electrode line or the negative electrode line by a switching element. Conduction noise caused by the driving current of the magnet coil can be suppressed by the impedance element, and the capacitance of the capacitor can be further reduced. Accordingly, the magnet coil drive control device can be made smaller in size. |
申请公布号 |
EP2991226(A1) |
申请公布日期 |
2016.03.02 |
申请号 |
EP20130882791 |
申请日期 |
2013.04.25 |
申请人 |
HITACHI AUTOMOTIVE SYSTEMS, LTD. |
发明人 |
AIKI, KIYOSHI;HATANAKA, AYUMU;MAYUZUMI, TAKUYA;OYAMA, KATSUYA;ISHIDA, RYOSUKE;SUGIYAMA, YASUSHI |
分类号 |
H03K17/16;H01F7/00;H02K33/02;H02M1/00;H02M1/12;H02M1/44 |
主分类号 |
H03K17/16 |
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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