Many Electronic circuit projects in simple ways of learning

## 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.

## LM317 Regulators CALCULATOR

When we build variable DC power supply,output 1A and adjust up to about 30V. Most use LM317, because high-efficiency, easy to apply and cheaper[...]

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

## LM317 2N3055 3A Variable power supply

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.

## 0-60V Dual Variable power supply circuit using LM317&LM337

This is a 0-60V, Dual Variable power supply circuit using LM317 and LM337 at 1.5A current so can builds to easy with PCB layout, adjustable voltage VR1,VR2 [...]

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

## 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.

## Gel cell battery charger circuit

It can charge any size of the Gel cell batteries and extend the life of the Gel Cell battery. While the circuit is running, the LED indicates charging.

## LM317 Low dropout regulator 5V 2A using TIP41

This is LM317 Low dropout regulator 5V 2A using TIP41, The voltage input is 5.1V DC is converted into 5V output,while maximum output current to 2A by TIP41 [...]