mppt vs pwm
Hi, A nice little video comparing mppt vs pwm with the batteries in bulk mode. mppt vs pwm
Forum Discussion
A few things I noticed in the video:
1) The 24% gain was at peak conditions.
2) The positive lead from the fluke meter is attached to the neg battery post. Is that just to insert the fluke into the circuit for metering?
3) The pv7 is not pwm, in fact the manual says this:
"Charges batteries at full power, below the plate saturation point. This charges batteries quickly while reducing the electrolyte depletion (water loss) by up to 90% over conventional constant voltage methods such as “PWM” & “High Frequency” charge regulators. "
------------------------------------------------------------------------------
I found page 13 of the pv7's manual rather interesting. The question arises, is it true 'on/off' is a better charging algorithm than pwm; or any fixed voltage algorithm for that matter? And the guy in the video says it takes much longer to reach a full charge. Is this in fact true, or does fixed voltage simply waste a lot of power in the form of heat?
http://www.flexcharge.com/custom-1/PV7-PV7D-PV14%20full%202012.pdf
1) The 24% gain was at peak conditions.
2) The positive lead from the fluke meter is attached to the neg battery post. Is that just to insert the fluke into the circuit for metering?
3) The pv7 is not pwm, in fact the manual says this:
"Charges batteries at full power, below the plate saturation point. This charges batteries quickly while reducing the electrolyte depletion (water loss) by up to 90% over conventional constant voltage methods such as “PWM” & “High Frequency” charge regulators. "
------------------------------------------------------------------------------
I found page 13 of the pv7's manual rather interesting. The question arises, is it true 'on/off' is a better charging algorithm than pwm; or any fixed voltage algorithm for that matter? And the guy in the video says it takes much longer to reach a full charge. Is this in fact true, or does fixed voltage simply waste a lot of power in the form of heat?
http://www.flexcharge.com/custom-1/PV7-PV7D-PV14%20full%202012.pdf
