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. 21, 2025
Filed:
Feb. 23, 2023
Xiamen Pvtech Co., Ltd., Fujian, CN;
Xiamen PVTECH Co., Ltd., Fujian, CN;
Abstract
A lighting device control circuit includes an input voltage generating circuit and color temperature adjusting circuit. The color temperature adjusting circuit includes an encoder switch and first voltage adjusting element. The encoder switch includes a first main pin, first auxiliary pin, second main pin, second auxiliary pin, main common pin, auxiliary common pin and switch element. The main common pin and the auxiliary common pin are connected to a grounding point. The switch element selectively connects two of the above pins to each other. The positive electrode of a first light source is connected to the grounding point and the negative electrode thereof is connected to the first main pin, first auxiliary pin and second auxiliary pin. The positive electrode of a second light source is connected to the grounding point and the negative electrode thereof is connected to the second main pin via the first voltage adjusting element.