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:
May. 20, 2025
Filed:
Jul. 31, 2023
Shanghai Bright Power Semiconductor Co., Ltd., Shanghai, CN;
Jian Wu, Shanghai, CN;
Shunfa Zhang, Shanghai, CN;
Zhonghua Sun, Shanghai, CN;
Peng Wang, Shanghai, CN;
SHANGHAI BRIGHT POWER SEMICONDUCTOR CO., LTD., Shanghai, CN;
Abstract
An interface control circuit, a control method and an interface control device. The interface control circuit is suitable for use in a dimming system compatible with both DALI dimming and push-button dimming. The interface control circuit includes a DALI signal reception control module having a first switch element. The DALI signal reception control module is configured to be enabled, upon a voltage at a power supply terminal of the interface control circuit reaching a pre-start voltage, to turn on or off the first switch element according to the magnitude of a voltage on a DALI bus. The pre-start voltage is lower than a start voltage of the interface control circuit. This invention can ensure accuracy and reliability of rapid communication reestablishment over a period of time from a power-off to the next power-on of the DALI bus.