12 volt dc variable speed motor controller circuits using CMOS
To Control speed DC motor easily with a few parts in circuit.
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August 6, 2019
Surge protection circuit for power supplies
The surge protection circuit important! Sometimes, our electrical appliances may damage easily by little high voltage surges. We can protect this problem.
June 26, 2017
4 simple transistor tester circuits
This is the Transistor tester circuit into PCB. When your project do not works, the tester electronic parts or component be what need very much.
June 3, 2017
4011 Tone Generator circuit projects
Here is the tone generator circuit,it is small size. I use IC digital CMOS 4011 quad NAND gate.
May 6, 2017
Three bounceless switch circuit using digital IC
The simple bounceless switch circuit. It is one kind of electronic switches, high quality, and low noise. They are suitable for the digital circuits. Why?
April 11, 2017
The CMOS current controlled oscillator circuit (CCO)
We can use a CMOS nand gate or inverter gate and two transistors into the current controlled oscillator circuit (CCO). In Figure 1 use two inverters are connected together as…
March 30, 2017
Simple Continuity Tester circuit using IC-4011
Here is a Simple Continuity Tester circuit using IC-4011. If you are looking for a simple project for kids to learn oscillator on digital.
February 24, 2017
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