Simple Crowbar Circuit is safety part in electronics. It protect from high voltage spike or surge. Work like fuse but does not burns and it gets short circuit fast to stop damage. It use SCR or TRIAC for shorting, transistor or Zener to trigger. Trigger watch voltage all time. If voltage is too high then […]
24V Flasher Circuit
24V Flasher Circuit can ON-OFF 24V thing like lightbulb again and again. Can use to turn signal or warning flash light. This circuit uses IC 555 is common for making timer or flasher. We can change flash speed by adding resistor and capacitor to IC 555. This way is not so flexible but easy. Also […]
Simple Solenoid Driver Circuit
A Simple Solenoid Driver Circuit is a setup to control solenoid using low voltage signal. Solenoids are like magnets and they change electric power into movement. They need more voltage than small digital parts like microcontrollers can give. The driver works like a switch and it lets small signal turn big current ON and OFF […]
IC LM386 Based Voiceover Project Circuit
IC LM386 Based Voiceover Project Circuit is small audio project. It takes mic sound and makes it louder with LM386 chip and then sends to speaker. We can use this for public speaking, mix audio with mic first or talk in presentations. IC LM386 chip is easy to use and uses less power and give […]
Simple White Noise Generator Circuit
Simple White Noise Generator Circuit is DIY project. It make sound like radio hiss or static. Circuit is used for sound effect, privacy noise and testing audio tools. Noise come from electronic parts. We can use resistor or reverse transistor for noise. Capacitor remove too high or too low sound. Circuit Working: Parts List: Component […]
Simple Missing Pulse Detector Circuit
Simple Missing Pulse Detector Circuit is an electric circuit. It finds when pulse is missing in pulse signal. Most time it uses 555 timer IC and work like monostable multivibrator. When it gets trigger it gives one output pulse. If next pulse does not come in time then timer is in no reset. Output pulse […]