Nand Gate | Electronic Project Circuits

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Protection Surge with Delay the relay using ic 4011

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 4011 Nand 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.

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Categories: Digital, Electronic Control, Security, Timer Tags: delay timer, ic 4011 circuits, nand gate, Surge protector

Digital : Other gates made with NAND

An important property of NAND gates is that they can be linked to perform the functions of other logic gates. In fact, any logic function can be implemented using only NAND gates:
If you have designed a system which needs a NAND gate, a NOT gate and an AND gate, you might think of using a separate integrated circuit for each logic function. This would leave you with a circuit in which there were three unused NAND gates, five unused NOT gates and three unused AND gates. It is a lot more efficient (and cheaper) to use NAND gates to implement the other functions. All three gates can be made with just one 4011 integrated circuit.