Hi All
My first post, so apologies if I didn't put it in the right place.
I'm fixing a treadmill that blew motor pwm IGBT and took out the driving circuitry as well. I have checked all of the passive components and they check out OK. how ever, no firing from UC3845. IGBT and UC3845 were replaced with new ones obviously
I gave noticed that it also doesn't have 5 volts on pin 8. What would cause this? Everything else seems OK.
Looking forward to many discussions
Thanks!!
My first post, so apologies if I didn't put it in the right place.
I'm fixing a treadmill that blew motor pwm IGBT and took out the driving circuitry as well. I have checked all of the passive components and they check out OK. how ever, no firing from UC3845. IGBT and UC3845 were replaced with new ones obviously
I gave noticed that it also doesn't have 5 volts on pin 8. What would cause this? Everything else seems OK.
Looking forward to many discussions
Thanks!!