Patent ID: 9640987
Date: 2017-05-02
CPC Classifications: H02H,H02J,H02M,H03K

Claim:
1. A discharge circuit for an electronic device, comprising: an energy storage element; a plurality of switches; and a plurality of discharge paths coupled to the energy storage element and the switches; wherein, when a system power of the electronic device is turned off, a first switch of the switches is transited from a connection state to a disconnection state for conducting a first discharge path of the discharge paths and the energy storage element is discharged through the first discharge path; and a second switch of the switches is transited from a connection state to a disconnection state for conducting a second discharge path of the discharge paths in response that a voltage of the energy storage element drops to a first threshold, and the energy storage element is discharged through the first discharge path and the second discharge path.