Calling on Solar Techies
I have been thinking of going solar for some time and decided to pull the plug. My wants are a 400 to 500 watt system. I have four 12 volt batteries with 340ah. I am not planning on changing b...
Forum Discussion
time2roll wrote:
I think you will need an oscilloscope to see the PWM. And yes as you load up the controller it will go back to converting wattage to maintain voltage. More pronounced with higher input voltage.
An MPPT charge controller is a switched mode power converter, so it is always switching and varying the duty cycle. Depending on the quality of the filtering, you may be able to see some ripple with a scope, but this is true all the time, in bulk, absorb and float.
The concept that it changes into a PWM charge controller and operates like one in absorb and float is just not true.
