Summary

The MPPT-P3 is a six plus one channel maximum power point tracker and battery charger module, designed for durable, simple and robust satellite integration. The system consists of six variable frequency DC-DC buck converters and a single variable frequency boost-converter, that ensure optimal operating voltage for each solar cell array at all temperatures and irradiance levels. After conversion, the channels are combined through ideal diodes to minimize loss, and connected to the battery output.

A configurable end-of-charge setting will stop charging at a certain voltage level in order to prolong battery life. When components reach end-of-life, a pass-through mechanism will route the solar output directly to the battery bus, whereby functionality is not entirely lost. Likewise, if the on-board MCU is disabled, each MPPT channel has a fixed voltage fallback. Housekeeping data for all channels are available through CSP telemetry. Appreciating that the solar panels are often combined with external sun and temperature sensors, each solar panel connector are equipped with a protected battery supply and CAN bus interface.

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Last updated: 2021-11-12

MPPT-P3

3,825 EUR (engineering model)
4,500 EUR (flight model)

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Specs

9TRL
mass
150 g
width
94 mm
length
91.14 mm
height
13 mm
data interface
CAN bus with CSP protocol

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