Magnetically-activated solid state switches

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United States of America Patent

PATENT NO 12126340
APP PUB NO 20240291468A1
SERIAL NO

18174957

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Abstract

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Magnetically-activated solid state switches can include a magnetic field sensor, control circuitry configured to implement a comparison or ON/OFF logic, an output switch, a rectifier, power regulator, and charge pump, as shown. A magnetically-activated solid state switch can include a sensor bias or driver block. An analog front end may be present to amplify and/or condition the output signals produced by magnetic field sensor. Terminals can accommodate a unidirectional DC input signal or a bidirectional or AC input signal. In the ON state, the solid state output switch is configured by the control circuitry to turn OFF at a periodic rate to maintain sufficient charge to allow the solid state magnetic field sensor to sense a magnetic field. In the OFF state, the low-power regulator can periodically turn on and provide power to the magnetic field sensor for taking a magnetic field measurement.

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Patent Owner(s)

  • ALLEGRO MICROSYSTEMS, LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hein, Matthew Dallas, US 20 214

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