发明名称 Operation of a half-bridge, in particular a field-effect transistor half-bridge
摘要 The invention relates to a circuit configuration ( 1 ) for controlling the operation of a half-bridge ( 13 ) by pulse-width modulation, especially in a synchronous rectifier mode. Said circuit configuration comprises a first terminal connection ( 23, 25 ) for electrically connecting the circuit configuration ( 1 ) to an insulated gate terminal of a bridge valve ( 15, 17 ) of the half-bridge ( 13 ), a second terminal connection ( 20, 22 ) for electrically connecting the circuit configuration ( 1 ) to an additional terminal of the bridge valve ( 15, 17 ), a lead ( 16, 18 ) electrically connecting the first terminal connection ( 23, 25 ) to the second terminal connection ( 20, 22 ), and an electric valve ( 43, 45 ) that can be switched on and off by pulse-width modulated signals. Said electric valve ( 43, 45 ) is disposed in the lead ( 16, 18 ) so that a flow of current through the lead ( 16, 18 ) can be released and blocked. The invention is specifically characterized in that at least one inductive component ( 35, 37 ) is provided in the lead ( 16, 18 ) so that a time course of an electric current flow in the lead ( 16, 18 ) is influenced by the inductance of the inductive component ( 35, 37 ), in addition to the influence of a possibly present parasitic inductance.
申请公布号 US7332942(B2) 申请公布日期 2008.02.19
申请号 US20040546075 申请日期 2004.02.16
申请人 SIEMENS AKTIENGESELLSCHAFT 发明人 GOETZENBERGER MARTIN;KIRCHBERGER MICHAEL;SPEIGL WOLFGANG
分类号 H03K3/353;H03K3/02;H03K17/0812;H03K17/687 主分类号 H03K3/353
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