RafBR Posted June 23, 2012 Report Share Posted June 23, 2012 Hi, I did motorize my kid's electric car with a 12v wiper motor that burns out any fuse lower than 12A because of it's high current at start. I think it's running amperage is about 6A.I found this great circuit that fits almost exactly in what I want, except that it have a bit weak output amperage. here is the circuit: http://www.soloelectronica.net/dcdc_12v_a_18v.htmI think this is also great because of the potentiometer for the output current that will be very useful. If anyone with such knowledge in electronics could help me to replace a few components that help rising the output power would be perfect!!! I also know that for this high current I should enlarge the pcb traces and place loads of solder on it.best regards! Quote Link to comment Share on other sites More sharing options...
ZomBiE80 Posted October 7, 2012 Report Share Posted October 7, 2012 Should be simple to just change fuse F1 to 20A. Other components seems to be able to handle 15A. C10-C12 might have too high capacitance for motor control. Quote Link to comment Share on other sites More sharing options...
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