TBB power MPPT, User Manual, Page: 11 / 36

MPPT charge controller User Manual
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2.2.3 Dimension
Figure 2-3 Dimension of Solar Mate MPPT charge controller
2.3 Function
2.3.1 Maximum Power Point Tracking
The output power of PV array was affected by sun irradiation level and environment temperature.
The max power point varies a lot under different weather condition.
Max Power Point Tracking allows the maximum harvest of energy from PV array and delivered it
into battery. The MPPT software will continuously adjusts the operating points in an attempt to find
the maximum power point of the array no matter how the weather changes. With MPPT, we can
maximize the usage of the PV array, increasing the system efficiency by maximum 30%.
2.3.2 Battery charging control
With built in TBB premium III charging algorithm, SP automatically regulated the voltage and current
according to the DC source available from PV array.
The SP is able to charge a lower nominal voltage battery from a higher nominal voltage array. For
example, a 75VDC PV array to charge a 48VDC battery. This gives the flexibility to use longer wires
without compromising the efficiency of PV system.
The SP was not able to charge a higher voltage battery from a lower voltage array.