Flashing light making circuit diagram
Source: InternetPublisher:super_star Keywords: lamp circuit diagram contacts relay Updated: 2020/09/05
The circuit working principle of the device is shown in the figure. Plug in the power plug CT. Since the normally closed contact j1 of the relay J is closed, the lamp H lights up. And since the normally open contact j2 is open, the ④ pin of LSE outputs a low level. At this time, the transistor VT conducts Pass. After VT is turned on, relay J is excited and closed, contact j1 is opened, H goes out, and contact j2 is closed at the same time, so the output of LSE pin 4 is high level at this time, transistor VT is cut off, relay J is released, and contact j1 It closes again, H lights up, and contact j2 opens again... This cycle works over and over again, causing the light H to flash.
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