Low power solenoid control system and method

Details Low power solenoid control system and method Low power solenoid control system and method

2011-03-22

2011-03-22

Patel, Dharti H (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

C361S093100, C361S093700

Reexamination Certificate

active

07911758

ABSTRACT:
A low power solenoid control circuit including a power source in series with a sensing element and a first diode, an inductor to actuate a valve, an energy storage device to store and discharge energy into the inductor, diodes to control current flow, and switches and a controller to control the circuit. The circuit may be operated by closing a first switch, thereby allowing a source current to flow through an inductor; opening the first switch, thereby forcing a charge current to flow through an energy storage device utilizing the inductance of the inductor; repeating these steps until the energy storage device is sufficiently charged; and upon command, closing a second switch, thereby forcing a discharge current to flow from the energy storage device to the inductor causing the inductor to produce an actuating magnetic field thereby actuating a mechanical valve.

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Michael Lund, International Search Report for International Patent Application No. PCT/US2009/038118, European Patent Office, dated Jun. 18, 2009.
Michael Lund, Written Opinion for International Patent Application No. PCT/US2009/038118, European Patent Office, dated Jun. 18, 2009.

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