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Protection Surge with Delay the relay using ic 4011

2016-09-12 13:35  
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This circuit can be used to delay other appliances connected to the output of the relay. After working set To prevent equipment damage from pressure.
Surge.
The IC number is 4011Nand Gate CMOS.When switch S1 is current through R1. To charge at C1.This takes time to fully charge, and when a voltage input
Pin 1 and pin 2 of IC1.The output from pin 3 through a logic “0″ Volts to the control relay contacts to control the relay to work editing equipment, external works.That the time delay relay set from T = R1 x C1 x 0.85 is measured in seconds.

Protection Surge with Delay the relay using ic 4011

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