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:
Apr. 05, 2022
Filed:
Jun. 23, 2020
Asia Vital Components (Shen Zhen) Co., Ltd., Shenzhen, CN;
ASIA VITAL COMPONENTS (SHEN ZHEN) CO., LTD., Shenzhen, CN;
Abstract
The present invention relates to an active brake circuit for a fan with backup power, which comprises a protection circuit, a motor driving unit, a motor, a fan controller, and at least one bypass unit. The protection circuit receives an input power source. The motor driving unit connected between the protection circuit and the motor outputs a driving signal to the motor. The fan controller connected to the motor driving unit and the protection circuit outputs a control signal to the motor driving unit. The bypass unit is between the input power source and the motor driving unit such that the bypass unit passes the input power source to the motor driving unit. When the protection circuit disconnects the input power source to the motor, the motor driving unit outputs the driving signal to the motor such that a short circuit is formed to brake the motor.