The boost step-up regulator based an LM2577-ADJ switch voltage regulator chip.
More step voltage 12V to higher up
12V to 19V,12V to 16V, 12V to 30V,12V to 40V
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 are 12V DC step up converter circuit. They act Convert 12V DC voltage from a typical battery to boost voltage up.