US 12,244,140 B2
Power supply management circuit and power supply using the same
Yu-Xian Zeng, New Taipei (TW)
Assigned to Chicony Power Technology Co., Ltd., New Taipei (TW)
Filed by Chicony Power Technology Co., Ltd., New Taipei (TW)
Filed on Jul. 28, 2023, as Appl. No. 18/227,495.
Claims priority of application No. 112118994 (TW), filed on May 22, 2023.
Prior Publication US 2024/0396329 A1, Nov. 28, 2024
Int. Cl. H02J 1/08 (2006.01); H02M 7/537 (2006.01)
CPC H02J 1/08 (2013.01) [H02M 7/537 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A power supply management circuit comprising:
a first contact configured to receive a transmitted voltage;
a second contact configured to output the transmitted voltage;
a relay coupled between the first contact and the second contact;
a discharge unit coupled between the first contact and the second contact, wherein the discharge unit comprises a first end, a second end, and a third end, and the relay is coupled to the first end and the second end of the discharge unit in parallel; and
an activation unit coupled to the discharge unit; wherein
in response to that the power supply management circuit receives a control signal, the discharge unit is turned on or off, and the relay enters into a switching procedure, wherein the switching procedure comprises a turn-on procedure and a turn-off procedure; and
in response to that the control signal is an ON signal, the activation unit generates a driving voltage to turn on the discharge unit, the relay enters into the turn-on procedure, and the transmitted voltage is transmitted to the second contact through the discharge unit; after the switching procedure is completed, the activation unit stops generating the driving voltage to turn off the discharge unit, and the transmitted voltage is transmitted to the second contact through the relay.