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Three-phase Vienna rectifier

Three-phase power is often used by high power industrial applications. To improve overall quality and minimize harmonic currents power factor correction (PFC) is often required as many of the forward loads are DC – for example electric vehicle (EV) battery charging. The Vienna rectifier power topology is often the preferred choice as it operates in continuous conduction mode (CCM), has inherent multilevel switching (three level), and reduced voltage stress on the power devices.

Block diagram

设计考虑因素

  • 开始采用PWM驱动无刷直流电机控制
  • 电机驱动MOSFET必须以低RDSon和良好的热阻抗来满足峰值高电流需求
  • 如果过载情况会降低电池和栅极电压,则可能需要具有强线性模式性能的MOSFET来提供反向电池保护
  • MOSFET可能需要满足UL2595等的具体间距要求
  • 为小尺寸优化的电荷平衡MOSFET,通常装在可移动电池组中——每个电池一个

MOSFET and GaN FET Handbook

Drawing on over 20 years’ of experience, the MOSFET and GaN FET Application Handbook: A Power Design Engineer’s Guide brings together a comprehensive set of learning and reference materials relating to the use of MOSFETs and GaN FETs in real world systems.

Download your copy today 

Nexperia’s CFP2-HP delivers high thermal performance in a small footprint

As automotive, mobiles and other applications becoming increasingly miniature with more components needing to fit on a PCB, smaller packages are required to save space. Nexperia’s CFP2-HP meets this challenge and delivers high performance for the most challenging designs.

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