The reference board “REF_62W_FLY_1700V_SiC” was developed to support customers designing auxiliary power supplies for three-phase converters using the 1700 V CoolSiC™ MOSFET in a single-ended flyback topology.

The board has three outputs of +15 V, -15 V and +24 V with up to 62.5 W output power working in a wide input voltage range from 200 VDC to 1000 VDC. Its potential applications are three-phase systems having a high input voltage DC link.

The 1700 V CoolSiC™ MOSFET from Infineon is an excellent choice for high-input voltage DC link systems like those found in auxiliary power supplies for three-phase converters. The TO-263 7L surface-mounted device (SMD) package is an optimized package for up to 1700 V high voltage power devices. There is a creepage distance of about 7mm wide between the drain and source, so safety standards are easily met. The separate driver source pin helps reduce the parasitic inductance of the gate loop to avoid the gate ringing effect.

Reference Board Features: 

• Adjustable output over-voltage protection
• Overload/open loop protection
• Current limit protection
• Auto-restart for over-temperature protection
• VCC over-voltage and under-voltage protection
• Shorted winding protection

Reference Board Applications:

• Fast EV charging
• Motor control and drives
• Solutions for solar energy systems
• Uninterruptible Power Supply (UPS)

Target Market:

• EV Charger
• Industrial SMPS
• Industrial UPS
• Motor Control & Drives
• Solar String Inverter