H - Electricity – 03 – M
Patent
H - Electricity
03
M
342/21
H03M 1/34 (2006.01) F02D 21/08 (2006.01) H03M 1/00 (2006.01)
Patent
CA 1244918
AN ANALOG DUTY CYCLE TO BCD CONVERTER Abstract of Disclosure 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).
505053
Carp Ralph W.
Weber Robert E.
Wright Danny O.
Allied Corporation
Macrae & Co.
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