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:: Home » Power supply » Page 9

Power supply

How does Fixed voltage regulator circuit work

Last Updated on: March 25, 2025 by Apichet Garaipoom
Fixed voltage regulator working principle-banner

Learn DC voltage regulator circuit, Types of, Fixed and Adjustable. How it works, for example, circuits using Zener diodes, transistors, and more. Read more

Categories Basic Electronics, Power supply Tags DC voltage regulator 2 Comments

LM317 Power Supply (My First Circuit)

Last Updated on: March 29, 2025 by Apichet Garaipoom
Variable power supply using LM317

This is First Variable DC Power Supply 1.2V to 30V 1A using LM317. using a few parts and build easy with PCB layout and can fine adjust voltage output. Read more

Categories LM317, Power supply, Variable Supply Tags 0-30V power supply 117 Comments

0-30V 20A High current adjustable voltage regulator circuit

Last Updated on: June 20, 2022 by Apichet Garaipoom
4-20V 20A High current adjustable power supply

Not suitable for beginners! Read more

Categories Power supply, Variable Supply Tags High current Power Supply 47 Comments

15V Dual Power Supply Circuits With PCB

Last Updated on: March 12, 2025 by Apichet Garaipoom
Dual 15V Power Supply circuits With PCB, +15V -15V 1A

This is dual 15v power supply schematic, using LM7815,LM7915,and power transistor and zener diode for voltage stable voltage 15 volts positive and negative. […] Read more

Categories Power supply Tags DC voltage regulator, Dual output power supply 43 Comments

Simple Voltage regulator using 2N3055

Last Updated on: April 13, 2025 by Apichet Garaipoom
Simple Voltage regulator using 2N3055

You want to use a DC regulator or learn about voltage regulators using 2N3055.  Why use this transistor? Normally, it can be used with loads that require a current not exceeding 2A and a voltage of not more than 30V. This is enough for general work. It’s a transistor that people like to use for … Read more

Categories Power supply Tags 2N3055, Fixed voltage regulator 12 Comments
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