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. 28, 2015
Filed:
Jul. 21, 2011
Liang'an GE, Hangzhou, CN;
Xiaoli Yao, Hangzhou, CN;
Liang'an Ge, Hangzhou, CN;
Xiaoli Yao, Hangzhou, CN;
Inventronics (Hangzhou), Inc., Hangzhou, Zhejiang, CN;
Abstract
Provided is a circuit for adjusting light-emitting diode (LED) current; the circuit comprises: a single-output constant current source (), a multi-path LED output circuit () and a control bus () connected to the multi-path LED output circuit (); any given LED output circuit comprises: a load circuit (), an adjustment circuit (), a current regulation circuit () and an adjustment control circuit (). The circuit for adjusting LED current provided in the technical solution of the present invention adjusts the current of each LED output circuit via the load circuit, the adjustment circuit, the current regulation circuit and the adjustment control circuit, thus adjusting characteristic parameters such as color, color temperature, color rendering index, brightness and the like of the LED light source, thereby avoiding the problem of high cost caused by using multi-path constant current DC/DC circuit to adjust the current of each path.