CONTROL CIRCUIT FOR CONTROLLING AT LEAST ONE SOLENOID VALVE FOR METERING OF INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To enable a control circuit for controlling at least one solenoid valve for the metering of an internal combustion engine without making breaking current edge depend on changes in the voltage of a battery in quick deletion. SOLUTION: The control circuit is provided in such a way that an HS-FET is broken and switched to minimize the depending ability on battery voltage during quick shift, and a recharging circuit is used for supplying voltage to one to plural solenoid valves from the energy accumulated in san accumulation capacitor through a third switching means during booster phasing and also generates the recharging voltage pre-stabilized for the accumulation capacitor, and a forth switching means is controlled by a control means to activate the recharging circuit to recharge the accumulation capacitor.