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As a side note so that things can be done in parallel: there will need to be firmware written or at least set up to read values in SPI from the Nomuras (which Arshan has), and code to read from the thermistors, set the chip select lines for the SPI communication, control the relay and read voltage measurements from the ADCs. See schematics on my branch for details.

Part 1: Digital Communication Unit testing

This testing will be done by Liam during the Spring 2020 term, and will verify the ability to communicate over SPI, I2C and read using the controller board ADCs for each of the sense measurements.

Part 2: HV/Series MPPT Testing

Ideal Diode

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The ideal diode design was taken from the typical applications in the LTC4359 Ideal Diode Controller Datasheet and was used in the ideal diodes purchased from Nomura for MS12. The implementation uses Zener diodes to clamp the reference of the input to 12V wrt Vss. The remainder of the 200V drops across R1, allowing the IC to stay at a LV reference. The purpose of this ideal diode is to implement diode features (near ideal) in which all current in a forward bias is conducted, while it is isolated in reverse bias.

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