Power Supply Circuits

This Simple 5V Switch Mode Power Supply Circuit using IC LM2674 work like charger for electronics but better. It take strong electricity which is more than 5 volt and make it just 5 volt. 5 volt is perfect power for small electronics like those tiny computer boards for projects. Inside it got a special chip […]

This 30V 1Amp Transformerless Power Supply Circuit works like small adapter for our electronic. It takes normal high voltage electric and change it to low safe voltage to what our devices need. No big transformer is required it uses special parts like capacitor and diode to do the work. Like if we have 30V 1A […]

Think about small switches they only do “ON” or “OFF”. Simple Flip Flop Circuit is same like that but for electronics. It stay in two state like 0 or 1. This small switch very important it can remember stuff, keep data and help control what happen next like timing and by coordinating things. We can […]

DC Voltage Doubler Circuit is like small power booster. It takes normal battery power and make almost double. It use smart parts like diodes and capacitors and they work like tiny switch and small electric bucket. Sometimes many also use transistor or tiny chip to help. Imagine electric flow from battery like small stream. This […]

This Simple Regulated Adjustable Power Supply Circuit using IC 723 show how to make one simple power supply circuit, which can change voltage up and down. We can use one chip call LM723 with some people say IC 723, this chip is good and it take power from plug and makes it stable. Also, we […]

This High Current IC 7805 Voltage Regulator Power Supply Circuit tell how to make one circuit for strong power supply using one chip name LM7805. This chip take high voltage and give out stable 5V power for devices. But normal LM7805 give only small current which is not enough for big device. In this circuit […]