Vibration suppressing circuit for dc filter
专利汇可以提供Vibration suppressing circuit for dc filter专利检索，专利查询，专利分析的服务。并且PURPOSE:To prevent a vibration phenomenon occurred in a DC filter by providing in parallel a controllable rectifying element to be controlled for its conduction and a resistor with a series circuit of a power source side switching means and a reactor during a normal operation. CONSTITUTION:A main contactor 1 is closed, but a thyristor 7 is interrupted and the voltage vibration of a capacitor 5 is suppressed by a resistor 3 at the starting time. When a voltage from a pantograph 14 them becomes the predetermined value, the output from a detector 8 and the voltage of the capacitor 5 become the predetermined value, and an AND gate is operated with the output from a detector 9, thereby conducting the thyristor 7 ON. When the pantograph 14 is separated from a trolley wire 15 due to a vibration or the like during the operation of a vehicle, it is detected by the detector 8, and the thyristor 7 is interrupted by the operation of the AND gate in the same manner as above. Thus, the vibration caused by detrimental LC resonance can be effectively suppressed.，下面是Vibration suppressing circuit for dc filter专利的具体信息内容。
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