Patent ID: 6283717
Filing Date: 2001-09-04
Classification: F04B

Abstract:
A control circuit of a solenoid actuated pump having a solenoid energized with electrical energy supplied from a power supply, which comprises:a transformer; a rectifying circuit; a detecting means; a processing unit; an energizing circuit; and a data supplying unit;wherein the electrical energy from the power supply is divided into said transformer and said rectifying circuit for generating a direct voltage, said processing unit is energized with the electrical energy supplied thereto via said transformer, and the voltage divided from the direct voltage generated by said rectifying circuit is detected by said detecting means;said energizing circuit being constructed to energize said solenoid with an electrical energy supplied from said rectifying circuit;said processing unit being constructed so as to generate a control signal in accordance with the value detected by said detecting means and a set value preset to said data supplying unit; andsaid control signal controlling said energizing circuit so that, even if the electrical energy supplied from the power supply is of an excessively low or high value, the voltage outputted from the energizing circuit is adjusted to a predetermined value for energizing the solenoid.