Circuit Diagrams & Projects

 

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Circuit Diagrams & Projects


Audio Circuits

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Test Circuits

Battery Chargers / Monitor Circuits


Astable multivibrator using NAND gates

Astable multivibrator using NAND gates

This astable multivibrator uses two NAND gates of the 4 available on the 7400 TTL integrated circuit. Two LEDs are used to view the status or logic output of each gate.

Clock signal generator using 7400 IC (PCB)

Clock signal generator using 7400 IC (PCB)

This clock signal generator is an astable circuit which uses the TTL 7400 integrated circuit. The 7400 IC has four 2 inputs NAND gates (NOT AND) but we only use two gates. Suggested Printed Circuit Board (PCB)

UJT Relaxation oscillator circuit

UJT Relaxation oscillator circuit

The UJT relaxation oscillator circuit is a non linear oscillator used to generate a nonsinusoidal repetitive output signals that can trigger power control devices such as SCRs and TRIACs.

Pulse generator using NAND gate

Pulse generator using NAND gate This simple pulse generator using NAND gate is very useful and can be used as clock generator for other circuits. The circuit’s main element is…


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