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Dry panel cooler using counter air flow IGBT (IPM) with built-in gate drive Intelligent Power Module (IPM) with high withstand pressure Reduction of semiconductor elements by two-level circuits Small snubber-less power unit Small oil capacitor with large capacitance Highly integrated small gate control unit Riveted case

An Intelligent Power Module (IPM) to support protection detection and auto-protection functions Refrigerant-free cooler Adoption of small oil capacitor with large capacitance Noise reduction technologies (high frequency modulation control, zero-vector modulation control) High speed monitoring and self-testing function compatible with onboard tests High speed vector control (adaptive to speed-sensorless control) High adhesion control system with fuzzy logic 32-bit DSP highly integrated high speed processing microcomputer control component