A Simple Sawtooth Wave Generator Circuit finds applications in oscilloscopes, TVs, function generators and PWM systems. IC 555 is very common and is easy to make sawtooth and voltage goes up slow and drop fast in sawtooth shape. Also, frequency changes with potentiometer and circuit works with 5V to 15V. Circuit Working: Parts List: Components […]
Mini Projects
6V DC Motor Speed Controller Circuit using IC CD 40106
This 6V DC Motor Speed Controller Circuit using IC CD 40106 controls 6V DC motor speed, also change speed by change in duty cycle of input voltage. Circuit is cheap, easy, good for toy motor, small fan and blower and main part of this circuit is IC CD 40106 Schmitt trigger inverter which makes PWM […]
Motor Speed Regulator Circuit for PCB Drills
This tutorial is about Motor Speed Regulator Circuit for PCB Drills, it control speed for clean and accurate holes. Also, main part of the circuit is LM3578 IC with feedback and 1V reference and it also has oscillator. LM3578 and IRF540 MOSFET adjust motor speed and then they give smooth, adjustable speed for small PCB […]
Simple TDA7274 Based Low Voltage Motor Speed Controller Circuit
Simple TDA7274 Based Low Voltage Motor Speed Controller Circuit is useful and easy to make, as the circuit is efficient and precise with speed adjust. Also, TDA7274 IC is motor driver for low voltage and for low power DC motors and it works from 1.8V to 6V and has built-in voltage reference. Furthermore, output is […]
Transistor Based H-Bridge Motor Controller Circuit
Transistor Based H-Bridge Motor Controller Circuit controls DC motor spin both ways like clockwise, anticlockwise. Also, the circuit helps control speed and direction by easy switch method. Name “H-Bridge” comes from shape like letter H which has 4 switches and in this post circuit is 4-transistor H-Bridge. Furthermore, circuit is good for robotics, automation and […]
Motor Driver Circuit using IC TC4424
The Motor Driver Circuit using IC TC4424 chip works well for DC motor control because it drives two MOSFETs, operates fast, and needs only a few extra parts. In addition , circuit is easy to build and can control motor spin direction, also it power 10 to 18V DC which depends on motor; further more […]