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Valve detection device and operating method thereof

  • US 10,458,570 B2
  • Filed: 03/31/2017
  • Issued: 10/29/2019
  • Est. Priority Date: 04/01/2016
  • Status: Active Grant
First Claim
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1. An operating method of a valve control device, wherein the valve control device comprises a driving circuit and the driving circuit comprises a plurality of solenoid valve terminals and a sensing terminal, said operating method comprising:

  • sending a first set of the control signals to the driving circuit;

    sending a detection signal;

    sensing a voltage level at the sensing terminal when the detection signal is sent to one of the solenoid valve terminals and obtaining a sensing result accordingly; and

    repeating the step of sensing the voltage level until all the sensing results of the solenoid valve terminals are obtained,wherein a first sub-circuit of the driving circuit is disabled in response to the first set of the control signals.

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