US 11,990,836 B2
Power supply unit and power supply system with dynamic current sharing
Chi-Hung Lin, Taoyuan (TW); Guo-Hua Wang, Taoyuan (TW); Yu-Jie Lin, Taoyuan (TW); and Hsien-Kai Wang, Taoyuan (TW)
Assigned to DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed by DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed on Apr. 5, 2022, as Appl. No. 17/713,614.
Claims priority of application No. 202111306738.7 (CN), filed on Nov. 5, 2021.
Prior Publication US 2023/0147990 A1, May 11, 2023
Int. Cl. H02M 3/04 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/04 (2013.01) [H02M 1/0009 (2021.05)] 14 Claims
OG exemplary drawing
 
1. A power supply unit, comprising:
a power converter, configured to provide an output current and an output voltage,
a current detection circuit, configured to detect the output current, and provide a current signal corresponding to the magnitude of the output current,
a detection signal peripheral circuit, configured to receive the output voltage, the current signal, and a current-sharing bus signal, and respectively convert the output voltage, the current-sharing bus signal, and the current signal into an output voltage signal, a first current signal, and a second current signal, and
a control processor, configured to receive the output voltage signal, the first current signal, and the second current signal, and perform an active current-sharing control, a current-averaging error compensation control, and a droop current control according to the output voltage signal, the first current signal, and the second current signal so as to generate a control signal to control the output voltage and adjust the magnitude of the output current.