US 12,015,332 B2
Power supply and power saving method thereof
Chang-Hsun Chiang, Taoyuan (TW); and Yung-Hsiang Shih, Taoyuan (TW)
Assigned to FSP TECHNOLOGY INC., Taoyuan (TW)
Filed by FSP TECHNOLOGY INC., Taoyuan (TW)
Filed on Jan. 20, 2022, as Appl. No. 17/580,603.
Claims priority of application No. 110108260 (TW), filed on Mar. 9, 2021.
Prior Publication US 2022/0294331 A1, Sep. 15, 2022
Int. Cl. H02M 1/00 (2007.01); G01K 7/22 (2006.01); G06F 1/3206 (2019.01); G06F 1/3296 (2019.01); H02M 1/08 (2006.01); H02M 1/42 (2007.01)
CPC H02M 1/0035 (2021.05) [G01K 7/22 (2013.01); G06F 1/3206 (2013.01); G06F 1/3296 (2013.01); H02M 1/0006 (2021.05); H02M 1/0054 (2021.05); H02M 1/08 (2013.01); H02M 1/4208 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A power saving method of a power supply, comprising:
utilizing a monitoring circuit within the power supply to generate a monitoring signal according to operating loading of the power supply; and
utilizing a control signal generating circuit within the power supply to generate a control signal according to the monitoring signal, to drive at least two switch transistors within a circuitry within the power supply, wherein the switch transistors are connected in parallel;
wherein the step of generating the control signal according to the monitoring signal to drive the switch transistors within the circuitry within the power supply comprises controlling a voltage level of the control signal according to the monitoring signal;
wherein the step of controlling the voltage level of the control signal according to the monitoring signal comprises when the monitoring signal indicates that the power supply enters a light loading status, lowering the voltage level of the control signal which is configured to conduct the switch transistors by at least one-third.