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.
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December 28, 2018
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…
Simple long duration timer circuit
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
2 channel DC motor driver circuit on a saving model
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…
October 28, 2018
Many AC Dimmer circuit ideas
The AC light dimmer circuit can control light bulb or speed AC motor, we use triac and SCR as main,and adjust potentiometer and switch,more circuits [...]
September 28, 2018
Automatic water level controller – 2 circuits choice
Tank empty! No water! You do not like it. Let's make automatic water level controller circuit. Keep constant water. Simple parts. You can do.
September 26, 2018
Increasing current gain of transistor relay driver
Transistor Relay driver circuit in digital
How to control a load with a digital circuit like Arduino? A transistor relay circuit may be answered for you. The output pulse from the digital circuit to biased the…
September 2, 2018
Cheap Home disco lights by SCR-IC555-IC4017
This is a cheap home disco lights circuit. Friends like listening to Rock music,would like these circuits. It enhances your music listening more colorful. [...]
August 5, 2018