parallax power supply 7345ru parts PWM
My 7345 is not charging the coach batteries but does supply 12power to all accessories. The transformer, fan and relays work fine. Think i need a PWM circuit for it. Contacted PP tec support and th...
Forum Discussion
We've had this discussion before. You're an EE. I don't need to tell you how pwm regulators work. You know that until they reach 100% duty cycle, the converter will maintain setpoint regulation. If you don't see 13.7V or what ever, then you're not measuring at the regulation feedback point within the converter. You're measuring somewhere outside the converter. Unless you have a voltage sense line, the converter can't guarantee constant voltage at your measurement location. You are seeing an IR drop which the converter can't do anything about.
Sal
Sal
pnichols wrote:
I wish my 7345 would hold 13.8 volts at 45 amps.
