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                            400A high frequency robot welding machine

                            Release time:

                            2023-05-24 14:32

                            pic

                            PROJECT INTRODUCTION
                            This reference design solution is a high-frequency inverter robotwelding machine with a DSC microprocessor for full digital controland a rated current of 350 A. The main circuit uses a hard-switchfull-bridge topology based on SiC devices and APL self-developedSiC driver module was used to achieve active Mille clamp anddesaturation short-circuit protection, which improves the reliabilityof the system.
                             
                            DESIGN SPECIFICATION
                            Input Voltage 380Vac
                            Output Current 400A
                            Rated Power 15KW
                            Switching frequency 200KHz
                            System Efficiency > 92%

                             

                            FEATURES

                            · Switching frequency up to 200 kHz, system efficiency up to 94%;

                            · Various CAN BUS, RS232/485 digital communication interfaces;

                            · Excellent dynamic response, excellent regulation of the welding arc;

                            · Small volume of the machine:

                             

                            MAIN TOPOLOGY

                            pic

                            MAIN DEVICES
                             
                            Function Part Number Brand
                            Sid Mos C3M0065100K Wolfspeed
                            Driver APD202 APL self-developed
                            Output Rectifier Diode DSA3001200NA IXYS

                             

                             MEASUREMENT RESULTS AND WAVEFORMS

                             

                            picRCD Load 3KVA

                            picPF=0.5 逆變短路保護1s

                             

                             

                            picSoft start @no load

                            picWorking waveform @full load

                             

                             

                            picWorking waveform @no load

                            picWorking waveform @50A output

                             

                             

                            picWorking waveform @200A output

                            picWorking waveform @400A output

                             

                             

                            picWelding seam picture

                             

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                            400A high frequency robot welding machine

                            2023-05-24

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