×

PROTECTION CIRCUIT AND RELATED METHOD

  • US 20150077892A1
  • Filed: 09/18/2014
  • Published: 03/19/2015
  • Est. Priority Date: 09/18/2013
  • Status: Active Grant
First Claim
Patent Images

1. A protection circuit connected between a power supply for providing a working voltage and a load, the protection circuit comprising:

  • an interface capable of connecting and disconnecting with a load;

    a detecting module connected to the interface and configured to generate a trigger signal when the interface connects with the load;

    a control module connected to the detecting module and configured to generate a pulse width modulation (PWM) signal with a predetermined duty cycle in response to the trigger signal; and

    a switch module connected to the power supply, the control module, and the interface;

    wherein the switch module periodically turns on and turns off based on the PWM signal generated by the control module.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×