Delay lights out circuit
Source: InternetPublisher:念念Brown Keywords: Relay CD4541 Updated: 2020/09/13
Shown is a delayed lights out circuit. In this circuit, at the moment when the button switch S is turned on, the Q/QSEL terminal of CD4541
is connected to a high level , causing the ICl@ pin to output a high level, the VT transistor is saturated and conductive, the relay KS1 is closed, and the lighting power supply circuit is in a self-maintaining
state. . After a delay of 5 minutes, the CD4541 @ pin output becomes low level , the relay KS1 is released, and the lighting lamp is powered off and extinguished.
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