US 12,259,765 B2
Power control circuit and control method thereof
Yuetian Wang, Shanghai (CN)
Assigned to Ace Power and Technology Co., Ltd, Shanghai (CN)
Filed by Ace Power and Technology Co., Ltd, Shanghai (CN)
Filed on Sep. 20, 2022, as Appl. No. 17/933,764.
Claims priority of application No. 202111682370.4 (CN), filed on Dec. 29, 2021.
Prior Publication US 2023/0205288 A1, Jun. 29, 2023
Int. Cl. G06F 1/26 (2006.01); G06F 1/3203 (2019.01); G06F 13/42 (2006.01); H02J 3/00 (2006.01)
CPC G06F 1/26 (2013.01) [H02J 3/007 (2020.01); G06F 1/263 (2013.01); G06F 1/266 (2013.01); G06F 1/3203 (2013.01); G06F 13/4282 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A power control circuit, comprising a power supply, a voltage change signal circuit, an output circuit, a first switch and a second switch;
the power supply is coupled to an external power supply and configured to output power supplies of different power through two output terminals according to a first control signal;
the output circuit is connected to the two output terminals of the power supply, and configured to provide the power supplies of different power to an information processing system connected to the output circuit, and transmit a trigger signal provided by the information processing system to the voltage change signal circuit;
the first switch and the second switch are disposed between the two output terminals of the power supply and the output circuit;
the first switch is configured to disconnect and conduct a first power supply channel between an input terminal of the output circuit and the power supply according to a second control signal;
the second switch is configured to disconnect and conduct a second power supply channel between the input terminal of the output circuit and the power supply according to a third control signal;
the voltage change signal circuit module is connected to the first switch, the second switch, the power supply and the output circuit, and configured to output the first control signal to the power supply according to the trigger signal, and output the second control signal and the third control signal to the first switch and the second switch, respectively;
wherein the power supply comprises:
a first power supply unit connected to the external power supply and to the output circuit through the first switch, and configured to provide a power supply of a first power according to the second control signal;
a second power supply unit connected to the second switch, the voltage change signal circuit and the first power supply unit, and configured to convert the power supply of the first power according to the first control signal to provide a power supply of a second power;
wherein the second power supply unit comprises a DC-DC controller, a third switch, a fourth switch and an inductor;
an input terminal of the DC-DC controller is connected to the first power supply unit through the third switch;
one end of the inductor is connected to an output terminal of the DC-DC controller through the fourth switch, and the other end is connected to the output circuit through the second switch.