发明授权
- 专利标题： Reduced RFI power pulse modulator
- 专利标题（中）： 降低RFI功率脉冲调制器
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申请号： US431001申请日： 1995-04-28
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公开(公告)号： US6014049A公开(公告)日： 2000-01-11
- 发明人: James Carter Bach , John J. Baker , Robert Joseph Stock , Richard J. Szep , Gerlad A. Kilgour
- 申请人： James Carter Bach , John J. Baker , Robert Joseph Stock , Richard J. Szep , Gerlad A. Kilgour
- 申请人地址： IN Kokomo
- 专利权人： Delco Electronics Corp.
- 当前专利权人： Delco Electronics Corp.
- 当前专利权人地址： IN Kokomo
- 主分类号： H03K17/16
- IPC分类号： H03K17/16 ; H03K5/12
摘要：
A modulator has an FET output driver for applying repetitive pulses to an inductive load. A predriver comprises a resistor and capacitor in parallel across the FET source and gate for shaping the control voltage. A constant current source, turned on and off by an input signal, couples the shaping circuit to ground. The resistor and capacitor values determine the rate of control voltage change which is the same for turn-on and turn-off, to control the driver current slew rate for minimizing RFI emissions.
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