Solenoid driven metering pump supply voltage compensation circui

Details Solenoid driven metering pump supply voltage compensation circui Solenoid driven metering pump supply voltage compensation circui

1985-12-09

1986-12-30

Gellner, Michael L.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

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

361170, H01H 4732

Patent

active

046333622

ABSTRACT:
Circuitry is provided for use with solenoid driven apparatus, such as a metering pump, for example, which is typically powered by direct current from a full wave rectifier. The circuit compensates for variations in the supply voltage by adjusting solenoid "on-time" in substantially inverse relationship to the supply voltage by powering an RC charging network of an integrated circuit directly from the secondary of a transformer supplying power to the solenoid.

REFERENCES:
patent: 4019100 (1977-04-01), Barrus

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