发明名称 |
AN ANALOG DUTY CYCLE TO BCD CONVERTER |
摘要 |
An analog duty cycle to BCD converter for receiving pulsed digital signals (10) from an electronic computing unit (11) for operating an electromagnetic operated exhaust gas recirculation valve (12) having a plurality of valve actuators each responding to a binary valued voltage signal. The converter receives pulsed electrical signals (10) and through a low pass active filter means (14) and a comparator means (18), generates binary weighted control signals (22) for operating power transistors in a power switch means (24), a threshold means (20) provides a plurality of threshold voltage signals to the comparator means (18) to generate the control signals (22). |
申请公布号 |
EP0199954(A3) |
申请公布日期 |
1989.09.13 |
申请号 |
EP19860103531 |
申请日期 |
1986.03.15 |
申请人 |
ALLIED CORPORATION |
发明人 |
WRIGHT, DANNY O.;WEBER, ROBERT E.;CARP, RALPH W. |
分类号 |
F02D45/00;F02D21/08;F02D43/02;F02M25/06;F02M25/07;G05B1/02;H03M1/00;(IPC1-7):H03M1/34 |
主分类号 |
F02D45/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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