The IPM consists of six MOSFETs, three high voltage half-bridge gate driver ICs and a wide range of features like undervoltage lockout, smart shutdown, internal temperature sensor and NTC, overcurrent protection and internal op-amp.
The main characteristics of this evaluation board are small size, minimal BOM and high efficiency. It features an interface circuit (BUS and V_CC connectors), bootstrap capacitors, snubber capacitor, hardware short-circuit protection, fault event signal and temperature monitoring. It is designed to work in single- or three-shunt configuration and with three current sensing options: three dedicated on-board op-amps, op-amps available on a connected microcontroller, or the single op-amp embedded in the power module. A Hall/Encoder section completes the circuit.
The system is designed to achieve accurate and fast conditioning of current feedback to satisfy the typical requirements for field oriented control (FOC).
The STEVAL-IPMNM3Q is compatible with ST control boards based on STM32 microcontrollers, providing a complete platform for motor control.