PowerIntBridgeSwitch系列300W三相逆变器参考设计DER654

PowerInt公司的BridgeSwitch系列集成了两个高压N-沟功率FREDFET和低高边驱动器,其集成的半桥大大地简化高压逆变器的开发和生产.内部集成的600V功率FREDFET提供超软和超快二极管,非常适合于硬开关逆变器驱动,主要用在2/3相高压PM和BLDC马达驱动器,高达300W逆变器输出功率,包括洗碗机和冰箱的家用电器,高效率空调的冷凝器风扇.本文介绍了BridgeSwitch系列产品亮点,系列框图,采用BRD1265C三相逆变器设计DER654电路图以及采用BridgeSwitch系列马达驱动器300W三相逆变器参考设计DER654主要特性和指标,电路图,材料清单和PCB设计图.
The BridgeSwitch™ family of integrated half-bridges dramaticallysimplifies the development and production of high-voltage inverterdriven 2- or 3-phase PM or BLDC motor drives. It incorporates twohigh-voltage N-channel power FREDFETs with low and high-side driversin a single small-outline package. The internal power FREDFETs offerultra-soft and ultrafast diodes ideally suited for hard switched inverterdrives. Both drivers are self-supplied eliminating the need for anexternal auxiliary power supply. BridgeSwitch provides a uniqueinstantaneous phase current output signal simplifying implementation ofsensor-less control schemes. The low-profile, compact footprint surfacemount package offers extended creepage distances and allows heatsinking of both power FREDFETs through the printed circuit board.
BridgeSwitch offers internal fault protection functions and externalsystem level monitoring. Internal fault protection includes cycle-by-cycle current limit for both FREDFETs and two level thermal overloadprotection. External system level monitoring includes DC bus sensingwith four undervoltage levels and one overvoltage level as well asdriving external sensors such as an NTC. The bi-directional bussedsingle wire status interface reports observed status changes.
BridgeSwitch系列产品亮点:

Highest Performance and Design Flexibility
• Fully integrated half-bridge stage with up to 98% efficiency
• Eliminates external heat sink at rated continu...