single cell dc/dc converter PCB BC327 PNP

this is a dc/dc converter PCB I designed a few years ago. One transistor, two coils, and some passive components. It is adjustable. prototype photo actual PCBs are infrared soldered. New revision of the dc/dc converter PCB! It has been tested from 1.2 volts to 5 volts input range. Small PIC circuits can be powered directly from 1.2 volts battery with … Continue reading

dc/dc converter, new PCB revision available

  redesigned the PCB! -no patches -high efficiency LED via 4.7k resistor -variable resistor to adjust quitescenct current -robust diode -imprint on the PCB for input/ouput, + and – this PCB can power small PIC circuits directly from 1.2 volts battery, as well it can replace 9v batteries, for instance it can generate small 12v currents from 2x AAA cells. … Continue reading