ANALOG CIRCUITS PROJECTS Archive

Analog electronic Analog electronic projects application schematics

Water Level Control Automatic Tank Filling

Simple 555 circuit. The water tank filling circuit is based on the NE555 timer IC. By measuring the water level in the tank, it automatically starts the water pump motor..

Heat Sensitive Fan Speed Control Circuit

A circuit PCB design that adjusts the fan speed according to the temperature was made as small as possible, most of the components are SMD, in addition to the fan..

OBD II Socket Adapter PCB

The project is an external OBDII socket interface that allows easy access to the CAN bus and other transmission lines used by vehicle manufacturers using a diagnostic tester. Recommendations: the..

Automatic Polarity Stabilizer Simple Relay Circuit

Simple circuit with relay that directs output at the correct polarity when DC input is reversed. In reverse polarity protection, there is no output in the wrong connection. With this..

Adjustable Delay Circuit

An uncomplicated layout that will perfectly test sift wherever necessary delay the application of any device. Delay time it can be adjusted from about 2 to 120 seconds. It may..

Powerful Ultrasonic Dog Repeller

There are alternatives on the market with 4 TR2516T1 ultrasonic transmitter plow transmitter 25kHz 16mm dimensions, the output of which is installed on the CD4093A integrated circuit of the ultrasonic..

Dark Switch Circuit with 741 Opamp

The circuit diagram you see in the picture works as a dark switch with the LDR on it. The circuit consists of four resistors, a 741 opamp, two potentiometers (optional..

Light Activated Relay Switch (TransformerLess Power Supply)

Light Activated Switch Circuit. Switches, including those reacting to changes in lighting, are still very popular and practically used by electronics or automation specialists. This time we propose to make..

Phone Ring Amplifier Circuit

Phone Ring Amplifier Circuit People with hearing problems do not hear a phone call or intercom. Often the reason is the low volume of the bell built into the device…

Operational Amplifier Tester Circuit

This wiring is a module that makes it easy and easy to distinguish good operational amplifiers from defective ones. The op amp tester is designed to test simple, double and..