HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.;HON HAI PRECISION INDUSTRY CO., LTD.
发明人:
Yang Meng-Liang
申请号：
US201514725549
公开号：
US9696776(B2)
申请日:
2015.05.29
申请国别(地区):
美国
年份:
2017
代理人:
Reiss Steven
摘要：
A switch circuit includes a voltage follower module, a comparison module and a switch module coupled to the voltage follower module, the comparison module and a power supply. The voltage follower can receive a first control signal and a second control signal. The comparison module can receive the first control signal and the second control signal. The comparison module compares a voltage of the first control signal and the second control signal with a reference voltage. When the comparison module outputs a first signal to turn on the switch module, the first power supply unit and the second power supply unit work in the first operation mode. When the comparison module outputs a second signal to turn off the switch module, the first power supply unit and the second power supply unit work in the second operation mode.
