Lu Jung-Chang,Chen Chien-Hung,Wang Fa-Ping,Lee Chung-Shu
申请号：
US201615224890
公开号：
US9735692(B1)
申请日:
2016.08.01
申请国别(地区):
美国
年份:
2017
代理人:
Muncy, Geissler, Olds & Lowe, P.C.
摘要：
An adapter includes a rectifying unit, a power factor correction unit, a standby circuit, a load-connecting detection circuit, a first power conversion circuit, a second power conversion circuit and an auxiliary voltage control circuit. When a load apparatus is connected to the adapter, a first ground side of the first power conversion circuit is short-circuited to a second ground side of the second power conversion circuit, so that the load-connecting detection circuit is turned on and sends out a first signal. After the auxiliary voltage control circuit receives the first signal, the auxiliary voltage control circuit is turned on to drive the first power conversion circuit and the second power conversion circuit, so that the first power conversion circuit and the second power conversion circuit start to convert a first voltage into a first output voltage and a second output voltage.
