Industrial Motor Driver/Welding

Industrial Motor Driver/Welding

400W 3-phase input industrial fan motor drive

此参考设计⽅案是专为单相输⼊的⻛机驱动转为三相输⼊设计。 单相输⼊时,⻛机驱动⺟线电压为400V。为适配三相输⼊,将三相AC输⼊⾸先升压⾄700Vdc,再将700Vdc降压⾄400Vdc。三相PFC和Buck变换器由⼀颗MCU控制,⻛机驱动由另⼀颗MCU控制。三相PFC实现了10%负载时,iTHD在20%以内的设计要求。

400A high frequency robot welding machine

本参考设计⽅案是⾼频逆变式机器⼈焊接电源,采⽤DSC微处理器,实现全数字控制,额定电流为350A. 主电路采⽤基于SiC器件的硬开关全桥⽅案。电路简单,使⽤⾃研SiC驱动模块,实现有源密勒钳位和去饱和短路保护功能,提⾼了系统的可靠性。

16KW HVAC solution base on SiC device

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

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