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Magnetic sensor integrated circuit, motor component and application apparatus

  • US 10,637,374 B2
  • Filed: 08/08/2016
  • Issued: 04/28/2020
  • Est. Priority Date: 08/08/2014
  • Status: Expired due to Fees
First Claim
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1. A magnetic sensor integrated circuit, comprising:

  • at least one input port and one output port;

    a magnetic field detection circuit configured to detect an external magnetic field and output magnetic field detection information accordingly; and

    an output control circuit configured to selectively enable a load current flowing out to an outside of the integrated circuit from the one output port and the load current flowing into the one output port to a ground in the integrated circuit from the outside of the integrated circuit; and

    wherein the output control circuit outputs a control signal to a controllable bidirectional AC switch, the controllable bidirectional AC switch is controlled to be switched between a switch-on state and a switch-off state in a predetermined way; and

    the output control circuit comprises a first current path in which a current flows out from the output port, a second current path in which a current flows in from the output port, and a switch connected in one of the first current path and the second current path, wherein the switch is controlled by the magnetic field detection information outputted by the magnetic field detection circuit, and allows the first current path and the second current path to be selectively turned on.

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