increasing the voltage out from a 7812 ?

[mark krawczuk]

hi, is there any way to increase the out put voltage from a 7812 voltage
regulator ?
i need to increase it to about 13.8 volts .
thanks, mark k

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[Lord Garth]

"mark krawczuk" <krawczuk@dodo.com.au> wrote in message
news:416483ee@news.comindico.com.au...

hi, is there any way to increase the out put voltage from a 7812 voltage
regulator ?
i need to increase it to about 13.8 volts .
thanks, mark k

Place 3 diodes in the ground leg and you'll raise the output by 1.8 volts or
use a
variable resistor there instead. The input must be at least 2 volts above
the
output in all cases however.