Circuit Designing

soldering

sample of circuit designing:

Active high trigger for 555 in monostable mode.

     Astable mode by NAND gate

Audio amplifier

Automatic lightdark indicator

Automatic night lamp

Color distinguished using LDRColor sensor using LDR_1 

DTMF Decoder Circuit

Dark activated buzzer using LDR_0

Darkness detector

Differential amplifier

Fire alarm

Fixed voltage power supply

Full range centigrade temperature sensor_A (1)

Full range centigrade temperature sensor_B

Generating time delay with 555 IC

H-bridge with transistor as switch_A

H-bridge with transistor as switch_B

High pass filter

High voltage high current power supply

Infrared (IR) sensor

Intruder alarm security system

Inverting amplifier using 741

Inverting amplifier with signal feedback_A

Inverting amplifier with signal feedback_B

Inverting amplifier

Light dependent frequency variation using LDR

Light detector

Light sensor using photodiode

Liquid level Alarm

Long range IR

Low pass filter

Metronome

Music (Data) transfer by IR by amplification

Music (Data) transfer by IR

NAND gate monostable

NOT gate monostable

Negative suplly using 555 IC

Non-inverting amplifier

Opamp as comparator

OverheatOvercooling circuit breaker

Piezo sensor as input

Piezo sensor as output

Power failure alarm

RF based Fire Alarm circuit

RF based Intruder Alarm Circuit

Relay activation using TSOP 1738

Relay control by sound_0

Relay control through mic

Seismic sensor_0

Single switch motor onoff.. Clockwiseanticlockwise

Sound generation in audio range

Touch switch_

Touch switch_B

Traffic light signal

Transistor as audio amplifier

Transistor as audio amplifier

Voltage boost by using a resistor with 78XX

Wireless RF Remote Circuit

Wireless motor control through RF circuit_0

Working of light dependent resistor