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TIDA-010210: TIDA-010210 sample test

xiaoyuhan
Prodigy 10 points
Part Number: TIDA-010210
Other Parts Discussed in Thread: ISO7741

TIDA-010210 Hardware and software related problems and debugging.docxHello, now I have made the sample of TIDA-010210, and I am debugging the software and hardware. 

In the debugging process, I encountered three problems, details are attached.

 I have put forward my own solutions to the first two problems, please judge whether they are feasible.

Qustion1:

TIDA-010210-MB board there is no 12V power supply designed to interface with TIDA-010210-GaN board.

Can I replace 12V-ISO power supply on TIDA-010210-GaN board with 12V_INT power supply on TIDA-010210-MB board.? And they are all powered by an external 12V digital supply.

Qustion2:

Pin 3 PG of the device U2 and U5: UCC14131 is connected to pull 5V through a 12K resistor, but when the U2 and U5: UCC14131 power supply is normal, the PG pin will pull down the 5V, resulting in the enabling pin10 EN2 of the device U4 and U7: ISO7741 is also pulled down. The U4 and U7: ISO7741 does not work properly.

 CAN I let the EN2 pin10 of U4 and U7: ISO7741 open. According to the manual: When EN2 is high or open, the output pin of side 2 is enabled.

Qustion3:

Does the software need to be changed when I test?

Thanks very much!

  • 0
    Prodigy 10 points

    And I wrote a program to control PWM S4C is capable of normal output waveform.  So, the hardware is normal.

  • 0
    TI__Intellectual 2830 points

    Hi Xiaoyuhan,

    1) you will need to connect an external power supply. There is no any flyback etc connected to the HV to converter back to the LV.

    2) In theory, I experience sometimes problems with external 12 V supplies which are not really always very strong in supplying current. If you have the power good that does not work good you should change the external power supply.

    3) The software is available on SDK.

    Thanks

    Best Regards

    Riccardo

  • 0 in reply to Riccardo Ruffo
    Prodigy 10 points

    Hi team, for the third question, I just want to verify that the DC side is connected to 800V voltage and the AC side is unloaded when the grid is not connected. In this case, I ran the SDK software on CCS, but no PWM is generated. I first suspected there was something wrong with the hardware. So I wrote a program to control the relay and PWM_S4C signal, in which the relay can normally draw, and PWM_S4C can also output PWM signal. This proves that there is no problem with the hardware. Therefore, I would like to ask: TIDA-010210 DC is connected to 800V voltage, AC end is unloaded, and AC end is expected to output 50Hz AC voltage, what changes should be made to SDK software to meet my test conditions. Thanks very much!

  • 0 in reply to xiaoyuhan
    TI__Intellectual 2830 points

    Hi Xiaoyuhan,

    which lab are you running? Lab 2?

    Have you pushed cleared PWM?

    Have you checked that the overvoltage protection is not triggered?

    Have you checked that there is not fault triggered? as overcurrent overvoltage

    Have you selected the right sensing strategy for the current: analog or SDFM?

    Thanks

    Best Regards

    Riccardo