摘要
现在绝大多数变频器电路的设计,都是基于印制电路板(PCB)进行的。对于小功率变频器,这样的设计可以使得变频器结构更加紧凑,实现小型化设计;对于中大功率变频器,由于现有功率模块的结构特点,通用的方法是通过铜排走线,存在的问题是成本高,寄生电感大,EMI问题严重。泰科电子(Tyco)针对这些问题,推出了基于完全PCB布线的600V,1200V IGBT功率模块,功率范围覆盖了15kW到30kW。
Since IGBT＇s used for frequency control of 3 phase electro motors, most motor drive applications are designed as printed circuit board （PCB） based. Power components are soldered into the system board. For low power an ideal power flow is an advantage to achieve a compact and efficient solution. For high power the power flow is decisive whether a PCB based solution is still possible or expensive alternatives have to be used. PCB integration of drive applications in the power range fro 15kW to 30kW facing the challenge of high current in the power tracks, compensation of line inductance and to achieve a reliable but simple assembly process. The key component for this approach in most instances is the power module. An intelligent structure and a reliable mechanic concept will reduce the expenditure for development and assembly.
出处
《变频器世界》
2007年第2期84-85,共2页
The World of Inverters
