7 simple touch switch circuit projects
Many how to make simple touch switch circuit project. To build easy. Using transistor and IC like 555 timer, 4011 CMOS, flip-flop IC.
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March 3, 2019
All controller, motor speed driver,switches,timer,sensor,and more : Timer switches • DC motor speed control • Delay timers • Light switchs • SCR controls • Light dimmers • Infrared remote control system • and more…
Speaker protection circuit
It will prevent the speaker from too over high power output may speaker damaged it use transistor and relay cut off as safe.
December 28, 2018
Simple long duration timer circuit
The Simple long duration timer circuit using OP-AMP, If build the RC timer only that long time delay we need too many resistors and capacitors may be error [...]
November 29, 2018
Simple long duration timer circuit
Pulse width modulation motor control using CD40106
This is the Pulse width modulation motor control using CD40106. Usual, we just enter the voltage and DC current source to the DC motor, Makes motor can be rotated. If will modify or regulate the speed in rotation of the motor. We will need to enter the voltage look into pulses or periodically. Which will make the average voltage at the output is different. By the pulse voltage is high frequency will have the average voltage than the low-frequency pulse. The same with the pulse has over duty cycle value, it will have the average pressure much than low duty…
November 20, 2018
Pulse width modulation motor control using CD40106
How to rotate dc motor in both direction
It is easy if you control DC motor in a single direction. Sometimes you think. How to rotate DC motor in both direction. You are not worried. There are many ways to control speed, on-off, and dc motor reverses rotation. In these circuits below use many types of components, power transistor, MOSFET and Relay. The input of these circuits may be low volt of DC pulse, digital circuits, Arduino, and more. 2 channel DC motor driver on saving a model This is 2 channel DC motor driver on saving the model. Using transistors as main components. They can control rotate…
October 28, 2018
2 channel DC motor driver circuit on a saving model