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.
Wrap-Up:
The Solar Charge Controller is the Heart of a Stand-alone PV System. So what should you consider to
choose the right solar charge controller? Here is a Charge Controller Checklist that may help:
 PWM or MPPT
 Environmental Conditions
 Accurate Fixed or Adjustable Regulation Set Points
 Protections:
 Lightning & Voltage Transient
 Environmental (Tropicalization)
 Electronic
 Electrical Isolation
 Communication Protocols & Interfaces:
 Open (or Proprietary)
 Modbus TCP/IP, SNMP & SMTP
 Ethernet, EIA-485 & EIA-232