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                            16KW HVAC solution base on SiC device

                            Release time:

                            2023-06-01 17:47

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                            PROJECT INTRODUCTION
                            This solution used Wolfspeed's SiC devices to instead of traditionaIGBT module for HVAC systems, which can significantly improve thesystem performance and has more cost effective. The compressorcontrol frequency was set to 16KHz to reduces audible noise.Meanwhile, the system efficiency is much higher compared withtraditional IGBT devices, especially with light load. The standby powerconsumption is lower to meet the standby energy efficiency standard
                             
                            DESIGN SPECIFICATION
                            Input Voltage 38OVac
                            Output Voltage 25A
                            Rated Power 16KW
                            Switching frequency 16KHz
                            System Efficiency >98%

                             

                            FEATURES

                            · Higher system efficiency with SiC device;

                            · Sensorless FOC algorithm simplifies system design;

                            · SiC synchronous rectification, high system efficiency:

                            · 16KHz switching frequency, smaller dead time, iTHD & noise;

                            · RS485 communication for upper monitor;

                            · 4-20mA analog current parallel communication, faster response:

                             

                            MAIN TOPOLOGY

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                            MAIN DEVICES
                             
                            Function Part Number Brand
                            SiC MOS C3M0040120K Woltspeed
                            Input bridge DSP45-16A APL
                            Isolated communication NSiP894X Novosense
                            Current sensor MCA1101-50-3 Aceinna

                             

                             MEASUREMENT RESULTS AND WAVEFORMS

                             

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                            Efficiency.vs.Io

                             

                             

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                            ITHD.Vs.Standard curve

                             

                             

                            pic

                            Turn on Vgs&Id&Vds@700V 44A

                             

                             

                            picDiode temperature @ full load

                            picSiC MOS temperature @ full load

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                            16KW HVAC solution base on SiC device

                            2023-06-08

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