Abstract: Finding and replacing the defective insulated-gate bipolar transistor (IGBT) module timely by monitoring the ageing state of IGBT can improve the reliability of a power converter and reduce ...
Abstract: A compact microelectromechanical (MEM) switch design and associated family of logic gates, memory cells, and other basic very-large-scale integration (VLSI) digital circuit sub blocks are ...
Well-known industry author and instructor Jim Johnson is offering a new video for technicians who want to sharpen their troubleshooting skills. "This HVAC training video program, is available in DVD ...
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