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. 02, 2025
Filed:
Nov. 03, 2023
Acleap Power Inc., Taipei, TW;
Acleap Power Inc., Taipei, TW;
Abstract
Embodiments of the present disclosure relate to a circuit for limiting duty cycle for a DC switching power supply. The circuit includes: a timing module and a switch control module. The timing module is configured to cause the variable output voltage to increase to a voltage threshold within a time shorter than a duration time of the first level of the period. The switch control module is configured to: in a period having the duty cycle greater than the maximum limit duty cycle, output a signal enabling the switch to be turned on before the variable output voltage increases to the voltage threshold, and output a signal enabling the switch to be turned off independently of the pulse signal after the variable output voltage increases to the voltage threshold. The circuit enables the duty cycle of the switch not to be excessively large during the transition phase.