发明名称 |
Hybrid DC electromagnetic contactor |
摘要 |
In a hybrid DC electromagnetic contactor, by including a power unit for supplying a certain power voltage; a main contact point of a breaking switch for providing a supply path of the power voltage by being switched in accordance with a voltage apply to an operational coil; a switch for providing a supply path of the power voltage according to a gate signal; a snubber circuit for charging voltage at the both ends of the switch in turning off of the switch and being applied-discharged an electric current when the charged voltage is not less than a certain voltage; and a discharge current removing unit for removing the discharge current by providing a discharge current path to a load block in turning off of the switch, it is possible to minimize a size of leakage current when the main contact point and the semiconductor switch are turned off, and accordingly it can be practically used.
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申请公布号 |
US7079363(B2) |
申请公布日期 |
2006.07.18 |
申请号 |
US20030404061 |
申请日期 |
2003.04.02 |
申请人 |
LG INDUSTRIAL SYSTEMS CO., LTD. |
发明人 |
CHUNG YONG-HO |
分类号 |
H01H73/18;H01H9/54;H01H33/59;H01H47/00;H03K17/16;H03K17/56 |
主分类号 |
H01H73/18 |
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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