TIDT332 May   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Dimensions
    4. 1.4 Test Setup
      1. 1.4.1 Hardware Setup
      2. 1.4.2 Firmware Setup
      3. 1.4.3 Test Static Operation
      4. 1.4.4 Test Soft-Start Process
      5. 1.4.5 Test Voltage Balance Performance
      6. 1.4.6 Test Bidirectional Transition Process
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Bidirectional Transient
    3. 3.3 Start-Up Sequence

1.4.4 Test Soft-Start Process

The soft-start test can be done by using Code Composer Studio™ (CSS) to start the code after 800V is powered up, the detailed process follows:

  1. Connect the HV port to the 800V DC source, set the current limit to greater than 2A
  2. Connect the LV port to the 12V E-load, set the load current to 0A
  3. Power up the 12V bias power
  4. Launch code to the TMDSCNCD280039C card, and keep the CCS connected
  5. Gradually increase the HV source to 800V, with less than 1V / ms
  6. Click the Resume button in CCS
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