再颁专利
USRE41796E1 Method and device for producing an electric heating current, particularly for inductive heating of a workpiece
有权
用于产生电加热电流的方法和装置，特别是用于工件的感应加热
- 专利标题： Method and device for producing an electric heating current, particularly for inductive heating of a workpiece
- 专利标题（中）： 用于产生电加热电流的方法和装置，特别是用于工件的感应加热
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申请号： US12378474申请日： 2009-02-13
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公开(公告)号： USRE41796E1公开(公告)日： 2010-10-05
- 发明人: Klaus Schmitt , Wolfgang Schmidt , Heiko Scheffler
- 申请人： Klaus Schmitt , Wolfgang Schmidt , Heiko Scheffler
- 申请人地址： US DE Newark
- 专利权人： Newfrey LLC
- 当前专利权人： Newfrey LLC
- 当前专利权人地址： US DE Newark
- 代理机构： Harness, Dickey & Pierce, P.L.C.
- 优先权： DE102004010331 20040225
- 主分类号： H02M3/335
- IPC分类号： H02M3/335
摘要：
A heating current used to inductively heat a metallic or magnetic work-piece is generated by an inverter supplied by a supply voltage. The inverter includes four switching elements arranged in an H-bridge circuit having two parallel longitudinal branches and a transverse branch. The switches are controlled so the heating current flows through the transverse branch. The diagonally opposed switching elements are switched from a conductive to a non-conductive state in a temporally staggered manner.
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