Back to results
US 5,293,299 AGranted
Fuel pump control circuit
AssigneeJidosha Kiki Co., Ltd.
InventorsHideo Iwabuchi, Takeo Shimada
Life of this patent
Estimating the term…
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.
Claims2
A fuel pump control circuit comprising:
- 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, said SCR being turned on by a gate current supplied from said power source through a first conduction path;
- a timer circuit for shunting the gate current, which flows into said first conduction path, to a second conduction path when a predetermined time elapses after turning on of said ignition switch;
- and
- a current limiting resistor inserted in said first conduction path.
1 more element
Dependencies are inferred from the claim text.