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:: Home » 12V Power Supply

12V Power Supply

Simple 12V Power Supply Circuit

Last Updated on: March 19, 2025 by Apichet Garaipoom
How to Build a Simple 12 volts power supply circuit

This simple 12V power supply circuit has a scalable current of 2A or more. It is an easy-to-make, low-noise, reliable, and durable circuit. Read more

Categories Power supply Tags 12V Power Supply, Homeschooling 2 Comments

High Current 12V-13.8V at 30A,25A,20A,15A Power Supply

Last Updated on: July 14, 2022 by Apichet Garaipoom
High Current 12V-13.8V at 30A,25A,20A,15A Power Supply

CAR Radio transmitters to use in home, need a ham radio power supply DC-12V or high current 13.8V power supply with enough power out of 5A – 30A. […] Read more

Categories Power supply Tags 12V Power Supply, High current Power Supply 71 Comments

12V 5V Dual Power Supply Circuit Diagram 3A max

Last Updated on: May 13, 2024 by Apichet Garaipoom
12V and 5V Dual Power Supply Circuit Diagram at 3A max

This is 5v 12v dual power supply circuit using 2N3055 and Zener diode for 12V then to LM309 or IC-7805 dc regulator IC for 5V output which easy circuit […] Read more

Categories Power supply Tags 12V Power Supply, 2N3055, 5V, Multi voltage regulated dc power supply 10 Comments

Simple Designing 12V 5A Linear Power Supply

Last Updated on: April 3, 2022 by Apichet Garaipoom
Simple Designing 12V 5A Linear Power Supply

This is a 12V 5A linear power supply circuit. Also, how to find resistors onside. I like to use a series of 78xx regulator ICs. Because it is so easy with a few parts. If we want 12V output. So, use 7812. But Maximum current at the output does not exceed 1A. What can we … Read more

Categories Basic Electronics, Power supply Tags 12V Power Supply, 78xx series 12 Comments

Creating Transistor Series Voltage Regulator circuit

Last Updated on: February 19, 2025 by Apichet Garaipoom
TransistSeries 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

Categories Power supply Tags 12V Power Supply, C1061, DC converter step down voltage, DC voltage regulator, Fixed voltage regulator 6 Comments
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