Microwave radar automatic lamp circuit(3)(TWH9248/9249)

Published:2011/7/4 22:12:00 Author:zj | Keyword: Microwave radar, automatic lamp | From:SeekIC

As the diagram shows,it is a automatic lamp which uses TWH9248/TWH9249 microwave emission and receiving sensor made in Guangdong Zhongshan Dahua electronics factory. It has the follow function: When the light at daytime or in room is strong, the lamp will not light up and when it is evening,the lamp will automatically light up.The annular antenna can use Φ3mm enameled wire to bend to Φ150mm circle and to connect to X,Y ports of A1. The circuit needs no debugging, and it can work well.



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