Pull transistor relay delay circuit diagrams

  
As shown relay delay pull transistor circuit. Just power, 16 F capacitor voltage is zero, two transistors are off, the relay does not operate. With 16 F capacitor charge, over
Pull transistor relay delay circuit diagrams - schematic

a period of time to which the voltage reaches a high level, two transistors are turned on, the relay delay pull. The delay time of up to 60s. Delay time can be adjusted by 10M resistor.




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