Simple Crowbar Circuit is safety part in electronics, as it protect from high voltage spike or surge; it work like fuse but does not burns and it gets short circuit fast to stop damage. Furthermore, it use SCR or TRIAC for shorting, transistor or Zener to trigger; also trigger watch voltage all time and if […]
Mini Projects
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. Furthermore, they need more voltage than small digital parts like microcontrollers can give, also the driver works like a switch and it lets small signal turn big current ON […]
Simple White Noise Generator Circuit
The Simple White Noise Generator Circuit is a DIY project that produces sound like radio hiss or static; so we use this circuit for sound effects, privacy noise, and testing audio equipment.” Noise come from electronic parts, so we can use resistor or reverse transistor for noise, also capacitor remove too high or too low […]
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 and if next pulse does not come in time then timer is in no reset. Hence, […]
Mains AC Power Supply Failure Buzzer(Alarm) Circuit
Mains AC Power Supply Failure Buzzer(Alarm) Circuit is small device; it makes sound (buzzer) when AC power goes OFF. Furthermore, it helps us to know power gone and is useful if we have important machine to know power goes at night; also it uses one switch called relay. When power is on, the relay operates […]
Simple Electronic Candle Circuit using LDR
This article for Simple Electronic Candle Circuit using LDR is fun and easy project to make fake candle with LED, as it uses LDR to make LED flicker like real flame and turns ON when its dark; also LDR controls the LED. Furthermore, in bright light the LDR has high resistance so LED stays OFF […]