System and method for energizing a solenoid coil for fast solenoid actuation
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United States of America Patent
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Nov 22, 2022
Grant Date -
N/A
app pub date -
Sep 24, 2019
filing date -
Sep 25, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A drive circuit for operating a solenoid includes a main switch and a charge pump circuit. The main switch is coupled in series with a coil of the solenoid. The main switch is configured to selectively enable current flow from a voltage source according to a main switching signal to translate a poppet of the solenoid between an opened position and a closed position. The charge pump circuit is coupled to the voltage source. The charge pump circuit is configured to discharge through the coil to translate the poppet from the closed position to the opened position, and to charge when the poppet is held in the opened position.
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