Im having some design problems and Im hoping someone can help Ive got 2 h-bridges running 2 DC motors at 5V and aprox 1A each, everything works fine if I switch each transistor seperately but if I try to tie bases together to save IO pins my Tip 42's get extremely hot. Ive got teh tip 42's wired on the high side and 120's on the low side. I havent found a way to wire the high and low sides together to make an OR gate effectively yet. Im using 1K resistors on both types of transistors when running the bases independently.
I know my schematic is probably not properly oriented, one of these days Ill write down the proper polarity of the symbols lol.
I know my schematic is probably not properly oriented, one of these days Ill write down the proper polarity of the symbols lol.