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:
May. 12, 2026
Filed:
Feb. 16, 2022
University of Science and Technology of China, Anhui, CN;
Lin Cheng, Anhui, CN;
Dongfang Pan, Anhui, CN;
University of Science and Technology of China, Hefei, CN;
Abstract
An isolated power supply chip based on a symmetrical Class-D oscillator with dead zone control is provided, including: a transmitting stage oscillator circuit connected to a power supply and a ground, the oscillator circuit is configured to invert an input DC voltage into differential high-frequency oscillation power signals and input the signals to a primary coil of a transformer; a rectifier circuit connected to a secondary coil of the transformer and configured to rectify the signals to output a DC voltage signal; and a feedback control circuit configured to feed back the DC voltage signal to the oscillator circuit; the oscillator circuit comprises: a dead zone control module, and a NMOS transistor group and a PMOS transistor group connected to the dead zone control module that are symmetrically arranged, the dead zone control module is configured to control the transistor groups to eliminate a short circuit current.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile