1200-V, IGBT-based power module aids efficiency in solar and UPS applications

April 10, 2014 // By Graham Prophet
Vincotech’s flow3xMNPC 1 modules feature three mixed-voltage NPCs (neutral-point-clamped) in a single flow 1 housing. Developed for 1200-V solar three-phase inverter applications, they enable engineers to design compact, space-saving inverters with excellent efficiency ratings.

The flow3xMNPC 1 module acheives around 98.7% efficiency in typical 16-kHz solar applications.

Measuring 82 by 38 mm and 12 or 17 mm in height, these modules support three phases in one flow 1 housing. They are equipped with 1200-V IGBT4 HS3s (high speed) in the half bridge and 600 V IGBT3s with low saturation voltage and ultra fast Stealth diodes in the neutral path.


The modules are dual-module solutions that combine a booster and three-phase inverter, which makes them a superior option for smaller inverters where space is limited and a small footprint is necessary. Rather than using a common emitter that requires seven power supplies, the M74x topology features a common collector configuration, thereby reducing the number of power supplies for the gate driver to five.

Part. no.





1200 V

3x 25 A

12 kW / 12 mm housing


1200 V

3x 25 A

12 kW / 17 mm housing


1200 V

3x 40 A

18 kW / 12 mm housing


1200 V

3x 40 A

18 kW / 17 mm housing

The IGBTs in all modules are equipped Kelvin Emitters to boost switching performance and an NTC for measuring temperature. The VincotechISE simulation tool provides flow3xMNPC 1 simulation models.

Vincotech; www.vincotech.com/flow3xmnpc-1