Refers to the rapid computation of array output power levels across the output voltage operating range of the array. The purpose of which is to find the array operating voltage at which the maximum amount of power is produced for the current environmental conditions. Morningstar TrakStar™ technology uses advanced sweeps to quickly and accurately find the maximum power point of the solar array and keep battery charging efficiency at a maximum.

Traditional PWM vs Morningstar’s TrakStar™ MPPT Technology

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Tech Support Policy

TriStar MPPT Processor A Firmware Update

v32b Firmware and above addresses EEprom access bugfix causing watchdog trip and subsequent lowside FET turn on.  This issue is generally limited to Controllers installed in applications utilizing all, or most, of the following items in the design.  -High I/O of Communications, -Read/Write of vb_ref register (0x0033), -Read/Write of ib_ref register (0x0058), -Write of battery current limit (0xE01D), -Coil command restart of controller, -48V Systems, -Oversized Arrays.  The following link provides instructions on updating firmware:   https://www.youtube.com/watch?v=J6Duwr5Tl-w&t=10s

 

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