发明名称 Output driver equipped with a sensing resistor for measuring the current in the output driver
摘要 An electronic circuit has an output driver (DRV) for providing a driving signal (U0). The output driver has a transistor (T) with a first main terminal, a second main terminal and a control terminal coupled to receive a control signal (Vcntrl), a power supply terminal (VSS), an output terminal (OUT) for providing the driving signal (U0) that is coupled to the second main terminal, and a sensing resistor (Rm) coupled between the power supply terminal (VSS) and the first main terminal. The output driver (DRV) further has means for temporarily disabling the coupling between the control terminal and the control signal (Vcntrl) during a peak voltage across the sensing resistor (Rm). The means may have a circuit that has a unidirectional current behavior, such as a diode (D), in series with the control terminal of the transistor (T).
申请公布号 US7492211(B2) 申请公布日期 2009.02.17
申请号 US20040484354 申请日期 2004.01.20
申请人 NXP B.V. 发明人 JANSSEN HENDRIKUS JOHANNES
分类号 H03K17/687;H03K19/0175;H03K17/06;H03K19/003;H03K19/017 主分类号 H03K17/687
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