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Method and device for rectification spark detection of direct current motor

阅读:20发布:2021-10-30

专利汇可以提供Method and device for rectification spark detection of direct current motor专利检索,专利查询,专利分析的服务。并且PURPOSE:To secure a simple and accurate detection for occurrence of the rectification spark and thus prevent previously the accident occurrence by detecting the high frequency current piled on the load current via the resonance-type coil. CONSTITUTION:When rectification spark 4a takes place to the DC motor, the load current piled with high frequency current 4b caused by the spark flows to conductor 11. As a result, high frequency attenuation signal 4c of resonance frequency f0 is generated at primary coil 13 connected to the transformer via core 12. Then high frequency attenuation signal 4d is generated due to the mutual induction at the secondary coil 14 connected to the transformer via coil 13 and core 12. Signal 4d is then turned into signal 4e through rectification of diode 16. Then signal 4e is filtered through capacitor 17 and then drawn out in the form of the output signal.,下面是Method and device for rectification spark detection of direct current motor专利的具体信息内容。

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