mppt vs pwm
Hi, A nice little video comparing mppt vs pwm with the batteries in bulk mode. mppt vs pwm
Forum Discussion
MrWizard wrote:
you seem to be under the assumption that panel output is 14v instead of 17v ?
and doesn't get altered and processed to become 14+ charging volts
try measuring the panel voltage at the input of the controller
a shunt controller goes on off
a PWM controller "modulates" the voltage
i know you don't believe me , you think i'm wrong
test equipment will tell the truth either way
When battery is say around 12 volts in the morning a PWM controller will
go into bulk. Durring this phase the panels are just plain connected to the battery untel absorbsion voltage setpoint is met. At this point it goes into PWM. Remember solar panels are current devices. It is only after the battery resists the amps (as decided by the voltage setpoint)
That voltage will rise to the setpoint. The big consern with what you are stating is misinformation.
The poor "lurker" who is trying to get a handle on solar may choose to believe you.
