Drive circuit for solenoid pump

Details Drive circuit for solenoid pump Drive circuit for solenoid pump

1979-02-23

1980-08-26

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

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

361203, H01H 4700

Patent

active

042198631

ABSTRACT:
An electrical energy stored in a capacitor is discharged to the solenoid of a solenoid pump through a thyristor as the latter is controlled to conduct, thereby producing a reciprocating movement of the piston of the pump. The value of the drive current passing through the solenoid is detected by a detection circuit, and a signal which depends on the magnitude of the drive current is applied to the trigger circuit of the thyristor. The period of oscillation of the trigger circuit which controls the conduction of the thyristor is controlled by the signal, whereby a uniform drive energy per unit time to the solenoid pump is assured.

REFERENCES:
patent: 3310714 (1967-03-01), Gargani
patent: 4138708 (1979-02-01), Takeshima
patent: 4142684 (1979-03-01), Schweitzer

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