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Electronic device

  • US 10,271,401 B1
  • Filed: 07/02/2018
  • Issued: 04/23/2019
  • Est. Priority Date: 04/19/2018
  • Status: Active Grant
First Claim
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1. An electronic device, comprising:

  • a mainboard circuit comprising an input terminal and a ground terminal;

    a thermistor serially connected between the input terminal and the ground terminal of the mainboard circuit; and

    a microcontroller, comprising;

    a first circuit pin coupled to the input terminal of the mainboard circuit via a connection and used to detect a temperature relating to the mainboard circuit via the thermistor; and

    a second circuit pin coupled to a node on the connection via a resistor and used to output an enable signal to the mainboard circuit for the mainboard circuit to determine to be in a standby mode or an operation mode according to the enable signal;

    wherein the mainboard circuit further comprises;

    a working circuit; and

    a switching circuit having a first terminal and a second terminal respectively coupled to the working circuit and the ground terminal, and a third terminal coupled to the input terminal and controlled by the enable signal to enable or disable a conduction between the first terminal and the second terminal.

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