发明名称 Circuit arrangement for switching a current in an inductive load
摘要 A circuit arrangement for switching a current through an inductive load includes at least one semiconductor switch which periodically switches the current through the load at a switching frequency. The main current path of the semiconductor switch is switched alternately to the conductive and to the non-conductive state. The semiconductor switch has a parasitic capacitance and has connected parallel to it a voltage-limiting element for limiting the voltage applied to it. An increase of the switching frequency is attained with simultaneous operation of the circuit arrangement with minimum losses in the semiconductor switch by using a voltage-limiting element (20, 21) which has an inductive input impedance at the switching frequency.
申请公布号 US4642750(A) 申请公布日期 1987.02.10
申请号 US19850757579 申请日期 1985.07.22
申请人 U.S. PHILIPS CORPORATION 发明人 RAETS, HUBERT C.
分类号 H03K17/08;H03F3/217;H03K17/16;H03K17/64;(IPC1-7):H02H7/122 主分类号 H03K17/08
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