Invention Grant
- Patent Title: Sensor output control methods and apparatus
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Application No.: US16881238Application Date: 2020-05-22
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Publication No.: US11029370B1Publication Date: 2021-06-08
- Inventor: Jonathan Zimmermann , Steven E. Snyder , Pablo Daniel Pareja Obregón
- Applicant: Allegro MicroSystems, LLC
- Applicant Address: US NH Manchester
- Assignee: Allegro MicroSystems, LLC
- Current Assignee: Allegro MicroSystems, LLC
- Current Assignee Address: US NH Manchester
- Agency: Daly, Crowley, Mofford & Durkee, LLP
- Main IPC: G01R33/07
- IPC: G01R33/07 ; G01R33/00 ; G01R19/155 ; G01R1/20

Abstract:
A sensor configured to generate a sensor output signal at a sensor output coupled to a pull up voltage through a pull up resistor includes a sensing element configured to generate a sensing element output signal indicative of a sensed parameter and a processor responsive to the sensing element output signal and configured to generate a processor output signal indicative of the sensed parameter. A digital output controller is responsive to the processor output signal and to a digital feedback signal and is configured to generate a controller output signal. An analog output driver is responsive to the controller output signal and configured to generate the sensor output signal at a first predetermined level or at a second predetermined level and a feedback circuit coupled between the sensor output and the digital output controller is configured to generate the digital feedback signal in response to the sensor output signal.
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