Multi voltage regulated dc power supply Archives

3A adjustable voltage regulator using LM317-2N3055

High quality, 3A adjustable voltage regulator. Using LM317 and 2N3055 so easy and cheap. Adjust voltage in steps 3V, 6V, 9V, 12V. And In fine, 1.25V to 20V.

32 Comments

December 11, 2018

3A adjustable voltage regulator using LM317-2N3055

LM317, 3A adjustable voltage regulator circuit diagram Output: 1.2V to 20V, and 3V,6V,9V,12V

Mini Projects / Power supply

LM317 Regulated Power Supply Voltage Select to 1.5V,3V,4.5V,5V,6V,9V 1.5A

This is LM317 voltage selector power supply projects can select output 1.5V,3V,4.5V,5V,6V,9V at 1.5A current. you can use as as battery, so saving.

22 Comments

November 4, 2018

LM317 Regulated Power Supply Voltage Select to 1.5V,3V,4.5V,5V,6V,9V 1.5A

1.5V, 3V, 4.5V, 5V, 6V, 9V adjustable power supply circuit instead of a battery

Power supply / DC converters / Basic Circuit

Simple multi voltage step down converter circuit

Simple Fixed DC Regulator using many zener diode. Good idea if use zeners!

7 Comments

May 13, 2017

Simple multi voltage step down converter circuit

Power supply

Multi voltage power supply circuit using IC-78xx series

Multi voltage power supply circuit. There is 2 Dual output, The 12V are +12V,-12V, Ground. And also the 5V are +5V, -5V, Ground. All 1A max.

1 Comment

January 19, 2017

Power supply

5 PC power supply circuit for you

A good DC switching power supply circuit form old computer that not used. It has used powerful, durable and works great.

5 Comments

September 3, 2012