Creating Transistor Series Voltage Regulator circuit
Small Zener diode voltage regulator circuit with PCB, using transistor and few parts. it is simple and cheap fixed dc source circuit. As one of best choice. Read more
Fixed voltage regulator
1A Voltage Regulator Circuit using 78xx series
First choice of Fixed Regulator using family IC-78xx. It is easy to use, cheap, popular for a long time. Read more
Simple 3.3V Power Supply circuit @ 1A for Digital
If you would like to build Simple 3.3V Power Supply circuit for digital micro controller or esp8266. This circuit may be one way for you. It can power current at 1A maximum. We normally use common electronics parts, so easy and cheap. Read more
Four Small 5-volts DC Regulator Circuits
This Small 5-volts DC Regulator. without IC-7805. Using transistors are interesting. If you have an old transistor or want to save. It may be a good choice. Read more