US Patent No. 10,219,344

LIGHT EMITTING DIODE DRIVER FOR DIMMING AND ON/OFF CONTROL


Patent No. 10,219,344
Issue Date February 26, 2019
Title Light Emitting Diode Driver For Dimming And On/off Control
Inventorship Manuel Rivas, Ciudad de Buenos Aires (AR)
Gerardo A. Monreal, Buenos Aires (AR)
Assignee Allegro MicroSystems, LLC, Manchester, NH (US)

Claim of US Patent No. 10,219,344

1. An integrated circuit (IC) comprising:a first magnetic field sensor configured to sense a magnet;
a second magnetic field sensor configured to sense the magnet; and
processing circuitry configured to:
receive a first signal from the first magnetic field sensor, wherein the first signal is based upon movement and position of the magnet with respect to the first magnetic field sensor;
receive a second signal from the second magnetic field sensor, wherein the second signal is based upon movement and position of the magnet with respect to the second magnetic field sensor; and
control an on/off state and brightness of a light emitting diode (LED) based on the received first and second signals.