The SPM31 IPMs have been designed to deliver higher efficiency, smaller footprint and higher power density resulting in lower total system cost. Given the greater efficiency realised using optimised IGBTs, these IPMs are intended for three-phase inverter drive applications such as heat pumps, commercial HVAC systems, servo motors, and industrial pumps and fans.
The SPM31 IPMs control the power flow to the inverter compressor and fans in heat pumps and air conditioning systems by adjusting the frequency and voltage of the power supplied to three-phase motors for maximum efficiency.
According to figures compiled by onsemi, a 25A-rated SPM31 using FS7 IGBT technology can decrease power losses by up to 10% and increase power density by up to 9%, compared to the company's previous generation products.
With the transition to electrification and heightened efficiency mandates, these modules are intended to help manufacturers drastically improve system design while increasing efficiency in heating and cooling applications.
Highly integrated these modules contain gate-driving ICs and multiple on-module protection features providing improved thermal performance and the ability to support a wide range of currents, from 15A to 35A. With their power density, SPM31 FS7 IGBT IPMs save on mounting space and improve performance expectations while shortening the development time.
In addition, the SPM31 IPMs include the following benefits:
- Controls for gate drive and protections
- Low loss, short-circuit-rated IGBTs
- Negative IGBT terminals available for each phase to support a wide variety of control algorithms
- Built-in under-voltage protection (UVP)
- Built-in bootstrap diodes and resistors
- Built-in high-speed high-voltage integrated circuit
- Single-grounded power supply
