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:
Dec. 16, 2025
Filed:
Jan. 06, 2022
Fanuc Corporation, Yamanashi, JP;
Kazuya Goto, Yamanashi, JP;
Yoshinori Sakai, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
The resonance power supply circuit is provided with a transformer provided with primary and secondary winding wires, first and second switching elements for applying a rectangular wave voltage to one end of the primary winding wire, a resonance capacitor connected to the other end of the primary winding wire, and a control unit that alternately turns on and off the first and second switching elements. The resonance power supply circuit is further provided with a first output circuit including first and second rectification elements, a first capacitor, an output capacitor, and a backflow prevention rectification element, a second output circuit including third and fourth rectification elements, a second capacitor, the output capacitor, and a third switching element provided between the second capacitor and the output capacitor, and a circuit for providing, as feeding back, voltage information indicating a first voltage of the first capacitor to the control unit.