Multi-stage discharge circuit for an electronic device and a multi-stage discharge method

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专利权人:

Avision Inc.

发明人:

Chen Hsing-Lu

申请号：

US201414584564

公开号：

US9640987(B2)

申请日:

2014.12.29

申请国别(地区):

美国

年份:

2017

代理人:

摘要：

A discharge circuit for an electronic device includes an energy storage element, a plurality of switches and a plurality of discharge paths coupled to the energy storage element and the switches. If a system power of the electronic device is turned off, a first switch of the switches conducts a first discharge path of the discharge paths, and the energy storage element is discharged through the first discharge path. In response that a voltage of the energy storage element drops to a first threshold, a second switch of the switches conducts a second discharge path of the discharge paths, and the energy storage element is discharged through the first discharge path and the second discharge path.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/