PWM vs. TrakStar MPPT Technology

Traditional PWM vs Morningstar’s TrakStar™ MPPT Technology
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The Morningstar Name and the Morningstar Logo, TriStar MPPT, SunSaver MPPT, TriStar, MeterHub and TrakStar are all the trademarks of Morningstar Corporation. MODBUS and
MODBUS TCP/IP are trademarks of Modbus IDA. © 2013 Morningstar Corporation. All rights reserved.
Morningstar’s MPPT Controllers:
Morningstar presently offers 3 MPPT controllers: SunSaver MPPT™ for small PV systems and two
TriStar MPPT™ controllers for larger PV systems, as summarized below:
SunSaver MPPT TriStar MPPT
Maximum Battery Current 15 amps 45 amps 60 amps
Max. Solar Input
12 volt 200 watts 600 watts 800 watts
24 volt 400 watts 1200 watts 1600 watts
48 volt none 2400 watts 3200 watts
Max. PV Open circuit voltage 75 volts 150 volts 150 volts
Communication Ports
MeterBus Yes Yes Yes
EIA-232 No Yes Yes
EIA-485 No No Yes
Ethernet No No Yes