mppt vs pwm
Hi, A nice little video comparing mppt vs pwm with the batteries in bulk mode. mppt vs pwm
Forum Discussion
No, not correct. Both the pwm and mppt controllers use pulse width modulation to control output voltage during absorb and float.
The 3048 manual discusses changing pulse widths during the maximum power point discussion. Do you understand what changing pulse widths means? It's pwm!!! The mppt controller uses pwm to achieve the maximum power point and it also uses pwm to achieve constant voltage output during absorb and float.
I didn't mention that the mppt controller goes back into mppt mode while in float or absorb when the setting sun doesn't supply adequate power.
The 3048 manual discusses changing pulse widths during the maximum power point discussion. Do you understand what changing pulse widths means? It's pwm!!! The mppt controller uses pwm to achieve the maximum power point and it also uses pwm to achieve constant voltage output during absorb and float.
I didn't mention that the mppt controller goes back into mppt mode while in float or absorb when the setting sun doesn't supply adequate power.
brulaz wrote:
Apparently a pwm controller applies the battery voltage to the panels during float or absorb. But the MPPT controller does not.
