Adjustable Power Supply with Charger Output

You can adjust the output voltage from 0V up to 12V with variable resistor R2. This circuit can handle a 1 ampere current. The 317 must have a heat sink. The charger output is 6V, you can use the charger to charge your mobile phone battery.
Here the PCB layout:

Electronic parts list:

Semiconductor:
LM 317 – 1pc
LED – 1pc
1N 4001 – 8pcs

Capacitors:
25V/470uF – 1pc
25V/10 uF – 1pc

Resistors:
1k, 1/2W – 1pc
220R, 1/2W – 1pc
5kR Potentiometer – 1pc

Others:
1Ampere, Multi-tap Transformer – 1pc
AC Chord – 1pc
Casing – 1pc
#22 Stranded Wire – 3m
Heatsink for TO220

Related Post:

• Simple 5 Ampere Power Supply
  Power supply is a must used circuits. Most of electronic devices which require DC voltage usually n...
• High Current Power Supply
  This power supply circuit can supply high current for your electronic project. Transistor 2N3055 is...
• Simple LED Flasher circuit
  Here the simple LED flasher circuit that you can use for your simple project. schematic diagram: com...
• 10W Audio Amplifier with Bass-boost
  This amplifier circuit design is based on the 18 Watt Audio Amplifier, and was developed mainly to ...
• The Trimmers
  A trimmer or preset is a miniatur adjustable electrical component. It is meant to be ordered aright...