The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
May. 04, 2023
Applicant:
Acer Incorporated, New Taipei, TW;
Inventor:
Tzu-Tseng Chan, New Taipei, TW;
Assignee:
ACER INCORPORATED, New Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/42 (2007.01); H02M 1/00 (2006.01); H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33576 (2013.01); H02M 1/0009 (2021.05); H02M 1/0019 (2021.05); H02M 1/4225 (2013.01); H02M 1/4241 (2013.01);
Abstract
A power supply device with high output stability includes a bridge rectifier, a first capacitor, a boost inductor, a first voltage divider circuit, a power switch element, a first output stage circuit, a second voltage divider circuit, a switch circuit, a transformer, a resonant capacitor, a second output stage circuit, and a detection and control circuit. The detection and control circuit can appropriately control the switch circuit according to a first divided voltage from the first voltage divider circuit, a second divided voltage from the second voltage divider circuit, and an output voltage from the second output stage circuit.