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:
Mar. 11, 2025
Filed:
May. 03, 2023
Suzhou Opple Lighting Co., Ltd., Suzhou, CN;
Opple Lighting Co., Ltd., Shanghai, CN;
Feng Chen, Suzhou, CN;
Pingwei Zhang, Suzhou, CN;
SUZHOU OPPLE LIGHTING CO., LTD., Suzhou, CN;
OPPLE LIGHTING CO., LTD., Shanghai, CN;
Abstract
The disclosure disclose a control circuit and a lighting device, relates to a technical field of illumination. In the power-on process of the control circuit, the voltage input to the driving input terminal of the constant current driving module rises slowly, resulting in the current overshoot phenomenon of the light source load. In the control circuit disclosed by the present disclosure, because the output current of the first regulation output terminal is positively correlated with the output voltage of the voltage limiting terminal, and the output current of the second regulation output terminal is negatively correlated with the output voltage of the voltage limiting terminal, during the power-on process of the control circuit, that is, during the voltage at the voltage limiting terminal is changed from zero to the first threshold value, the current input to the driving input terminal can be relatively constant.