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:
Jan. 28, 2020
Filed:
Sep. 12, 2017
Sengled Co., Ltd., Shanghai, CN;
SENGLED CO., LTD., Shanghai, CN;
Abstract
A rectifier circuit and a dimmer circuit are provided, comprising: an isolating driver circuit, a switching control circuit, a before-bridge damper circuit, and a rectifier bridge. The isolating driver circuit is connected to the before-bridge damper circuit via the switching control circuit, two ends of the switching control circuit are connected to two input ends of the rectifier bridge, respectively, and two ends of the before-bridge damper circuit are connected to the two input ends of the rectifier bridge, respectively. In the disclosed rectifier circuit and damper circuit, the isolating driver circuit receives the after-bridge control signal after the rectifier bridge, the switching control circuit controls connection or disconnection of the before-bridge damper circuit to the rectifier circuit based on the after-bridge control signal. Accordingly, the before-bridge damper circuit may be adjusted based on the after-bridge control signal, and flexibility in controlling and adjusting the rectifier bridge circuit is improved.