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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 thermsitors, 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.
Unit 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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The following is a list of the tests that need to be run and instructions to do so. Make sure YOU ARE ALWAYS CAREFUL AND CONFIDENT IN WHAT YOU’RE DOING, else seek help from a ee lead:
General connectivity
You’ll want to test all the nets (refer to schematic diagram) at each node. Simply use a DMM on ohm mode and turn on the sound with the sound button (if the probes make noise when they touch each other its the right mode). This is just a quick test after population to make sure everything seems right.
Voltage drop across diode all cases
Measure the voltage difference across the diode for each of the following cases.
LV Conduction forward bias
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