Maximum Power Point Tracking (MPPT) function.
Maximum Power Point Tracking, frequently referred to as MPPT, is an electronic system
that operates the Photovoltaic (PV) modules in a manner that allows the modules to
produce all the power they are capable of. The Solarmate Charge controller is a
microprocessor-based system designed to implement the MPPT. And it can increase
charge current up to 30% or more compared to traditional charge controllers.
(See figure 1).
(Module Temperature:25 )
6
1000W/
800W/
m
2
120
60
40
20
0
80
5
4
3
1
0
0 5 10 15 20 25
Voltage(V)
Current(A)
Power(W)
Current vs. Voltage
Power vs. Voltage
MPPT controller
operates PV modele
at max power point
extracting full 85W
Typical controller
charging at 12.5V,
extracts 65W
Figure 1 Current, Power vs. Voltage Characteristics
m
2
600W/
m
2
1000W/
m
2
800W/
m
2
600W/
m
2
14