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:
Nov. 21, 2023
Asia Vital Components Co., Ltd., New Taipei, TW;
Po-Sheng Huang, New Taipei, TW;
ASIA VITAL COMPONENTS CO., LTD., New Taipei, TW;
Abstract
A fan brake circuit includes a control module, a motor driving module electrically connected to the control module and a motor, and a brake control module including an energy storage unit, a stored energy supply control unit electrically connected to the energy storage unit and an input power supply, and a brake unit electrically connected to the stored energy supply control unit and the motor. When the fan is power off, the stored energy supply control unit controls the energy storage unit to output an operating voltage to the brake unit, which then transmits a brake signal to the motor for braking the fan quickly (or immediately) at the time of power off. The brake action ends once the fan stopped, but the fan is still rotatable by airflows produced by another fan as a result of windmill effect to keep providing a certain degree of cooling effect.