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Magnetic sensor integrated circuit, motor assembly and application apparatus

  • US 10,199,965 B2
  • Filed: 08/08/2016
  • Issued: 02/05/2019
  • Est. Priority Date: 08/08/2014
  • Status: Expired due to Fees
First Claim
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1. A magnetic sensor integrated circuit, comprising:

  • a magnetic sensor receiving a constant current outputting a differential signal;

    a signal processing unit converting the differential signal into a magnetic field detection signal; and

    an output control circuit controlling, at least based on the magnetic field detection signal, the magnetic sensor integrated circuit to operate in at least one state of a first state in which a current flows from an output port of the magnetic sensor integrated circuit to an outside of the magnetic sensor integrated circuit and a second state in which a current flows from the outside into the output port; and

    wherein the differential signal comprises a magnetic field signal and an offset signal, the signal processing unit comprises a first chopping switch to modulate the magnetic field signal and the offset signal to a high-frequency region and a baseband frequency respectively.

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