Adjustable Voltage Regulator 317T

Adjustable Voltage Regulator 317T with minimal circuit diagram.

Parts List:

1) LM317T

2) 10uF

3) 0.1uF

4) 240 ohm

5) 50k variable resistor

6) Socket

Tools :

1) Solder Iron

2) Solder Paste

3) Rojon

Step 2: Circuit Diagram

Circuit Diagram
pinout_lm317.gif
adjustable regulator brdboard.png

Now put your LM317T on your breadboard pin 1 is adjustable voltage, pin 2 output voltage pin 3 is input voltage positive part of the 10uF capasitor should be connected with pin 1 and a 0.1uF capasitor will be connected with pin 3. The positive part of the 0.1uF capasitor should be connected with pin3. and rest of the pin of capasitor is ground. 220 ohm resistor is connected between ground and pin 2. Wiper pin of variable resistor should be connected to pin 1.Input voltage should be in the range of 7V-30V

 

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DIY 5v linear voltage regulator circuit

This is a 5v linear voltage regulator circuit.Input voltage should not be more then 35V.

Step 1: Test It on the Breadboard

Test It on the Breadboard

Parts List :
1) LM7805

2) 100 nF (ceramic capasitor)

3) 10 uF (electrolite capasitor)

4)100 uF (electrolite capasitor)

5)Breadboard (optional)

Step 2: Connecting the Parts

Connecting the Parts

Now put your LM7805 on your breadboard pin 1 is input voltage pin 2 ground pin 3 is output voltage
positive part of the 10uF capasitor should be connected with pin3 and a 100nF capasitor will connected with this in parallel. Then the positive part of the 100uF capasitor should be connected with pin1.Input voltage should not be more than 25-30V and input voltage should be at least 7V. The Capacitors are for secure circuit you can ignore it if you want. The circuit is done.