The car dc to dc converter project for converts from 12V car battery to dual voltage of +40V Ground and -40V Available of +/-27V ; +/-30V ; +/-30V; +/-50V
This is 5V to 12V boost converter circuit or higher using transistor circuit,When if you want a negative voltage from a positive power supply.
How to make it light long time or use battery longer than usual. we use this Switch mode LED driver circuit using transistors. and simple circuit below [...]