Amantys Announces its New Tj Estimation Evaluation System

Amantys Announces its New Tj Estimation Evaluation System

The Tj Estimation Evaluation System is an exciting new measurement system developed at Amantys Power Electronics, which can estimate accurately both IGBT and diode junction temperatures to within ±5 °C in an operational converter. It has advanced measurement, data logging, and processing capability, designed for evaluating Amantys Tj Estimation technology and acting as a general-purpose data acquisition system for inverter stack testing.

 

Key Specifications

  • Single power supply input (15 V)
  • Internal isolation for measurement circuits
  • Measurements of upper and lower switches logged at 1 ms rate to USB memory stick
  • Measurement variables recorded:
    • VCE(off), IGBT VCE(on), diode VF for upper and lower switches
    • Phase current, using external current sensor
    • Switching pattern information (pulse timings)
    • Module NTC temperature (if present)
    • Baseplate temperature (up to 2 external lug mounted sensors)
  • On board algorithms calculate Tj of all 4 devices (upper and lower IGBTs and diodes)
  • Continuous calibration of devices
  • Configurable from USB memory stick

The Tj Estimation Evaluation System is supported by the Power Insight Configurator that can display the following information:

  • I-V Curves for the IGBT and the diode
  • Oscilloscope display of the measured parameters
  • Long term display of the measured parameters
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