Optimize your 3-phase power factor correction (PFC) systems with Microchip’s advanced Vienna PFC reference design, ideal for Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) chargers, as well as high-power Switch Mode Power Supply (SMPS) applications. Leveraging cutting-edge Silicon Carbide (SiC) technology, this design utilizes our mSIC™ MOSFETs and Schottky Barrier Diodes (SBDs) to achieve an impressive 98.6% efficiency at a 30 kW output.
Vienna 3-Phase Power Factor Correction (PFC) - from Microchip
The Vienna Rectifier is a three-phase, three-level rectifier topology that is widely recognized for its high efficiency and low harmonic distortion. It is designed to convert AC power to DC power with minimal losses, making it an excellent choice for applications requiring high power quality and reliability.
Design Advantages
High-Efficiency: Achieves over 98% efficiency, reducing energy consumption and operational costs
Low Harmonic Distortion: Three-level topology minimizes Total Harmonic Distortion (THD) to improve power quality and reduce stress on electrical components
Enhanced Reliability: mSIC™ MOSFETs and diodes ensure reliable, long-term operation and minimize maintenance costs
Features
- Optimized for high-power performance for high-efficiency 30 kW applications
- Advanced SiC components including 1200V mSiC diodes and 700V mSiC MOSFETs with high avalanche/repetitive Unclamped Inductive Switching (UIS) capabilities
- High-frequency operation delivers high efficiency at a 140 kHz switching frequency
- Input voltage range of 380/400VRMS, 50 Hz or 60 Hz
- Robust output voltage delivers a stable 700VDC
- Optimized PCB layout designed for safety and EMI requirements
- Precise digital control performed by dsPIC33CH Digital Signal Controller (DSC)
- Operating temperature range of −40°C to +85°C
- Over 98% efficiency
- Over-voltage, over-current, short-circuit and thermal protection
Solution Diagram
EV Chargers
Design targets Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) chargers, achieving 98.6% efficiency at 30 kW output power.
Industrial
Designed for enhanced safety, current stress management, mechanical stress resilience, and noise immunity.
Data Center
Designed to convert AC power to DC power with minimal losses, making it an excellent choice for applications requiring high power quality and reliability.
Additional Microchip SiC Technology
