Fuel pump control circuit

Details Fuel pump control circuit Fuel pump control circuit

1992-02-18

1994-03-08

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

361154, 12317918, 123497, F02D 4100

Patent

active

052932990

ABSTRACT:
A fuel pump control circuit includes an SCR for controlling, after turning on of an ignition switch, power supply from a power source to a fuel pump circuit for driving a fuel pump (this SCR being turned on by a gate current supplied from the power source through a first conduction path), a timer circuit for shunting the gate current, which flows into the first conduction path, to a second conduction path when a predetermined time elapses after turning on of the ignition switch, and a current limiting resistor inserted in the first conduction path.

REFERENCES:
patent: 3852646 (1974-12-01), Mason
patent: 4845420 (1989-07-01), Oshizawa et al.
patent: 4919102 (1990-04-01), Iwabuchi
patent: 5175663 (1992-12-01), Iwabuchi et al.

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