发明授权
- 专利标题： Circuit arrangement for monitoring a control circuit
- 专利标题（中）： 用于监视控制电路的电路装置
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申请号： US809504申请日： 1997-06-16
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公开(公告)号： US5763963A公开(公告)日： 1998-06-09
- 发明人: Michael Zydek , Wolfgang Fey
- 申请人： Michael Zydek , Wolfgang Fey
- 申请人地址： DE Wilmington
- 专利权人： ITT Manufacturing Enterprises Inc.
- 当前专利权人： ITT Manufacturing Enterprises Inc.
- 当前专利权人地址： DE Wilmington
- 优先权： DEX4434179.2 19940924
- 主分类号： B60R16/02
- IPC分类号： B60R16/02 ; B60T8/175 ; B60T8/1761 ; B60T8/88 ; G05B23/02 ; H02M3/08
摘要：
A circuit arrangement for monitoring a control circuit, which has a driver transistor with an inductive load and a second transistor in a circuit branch parallel to the inductive load, includes an additional, external current measuring device. A switching element, in particular a transistor and an ohmic measuring resistor, is provided parallel to the driver transistor. At a test instant, the current flowing through the inductive load is diverted to the measuring device and induces a voltage at the measuring resistor which is indicative of the status of the control circuit.
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