12 volts voltage regulator car adapter electronic circuit design project

A simple 12 volts voltage regulator car adapter circuit can be used to power your electronic devices from your car can be designed using few common electronic components .
This 12 volts voltage regulator car adapter circuit use a 12.7 volts zener diode but maybe you can’t find a 12,7 volts zener , so in that case you can use a 12 v or 13 volts zener diode . If you will use a 12 volts zener you will need to stick in another diode like 1N4001 (in this case the output voltage will be a little under 12 ) and if you will use a 13 volts zener the output voltage will be around 12.3 volts .