EVLDRIVE102P

概要

The EVLDRIVE102P evaluation board is a three-phase inverter based on the STL220N6F7 power MOSFETs. This evaluation board allows a full evaluation of the features of the STDRIVE102P, a triple half-bridge gate driver.

The STDRIVE102P is fully configurable by setting its internal registers through the SPI interface. Moreover, the status of the device and its internal protections can be monitored in real-time by accessing its status registers.

The power stage uses a single shunt topology: the current sensing and the overcurrent protections are implemented using a programmable gain amplifier (PGA) and the one programmable comparator embedded in the STDRIVE102P.

The embedded protections of the STDRIVE102P, such as the UVLO on the driving voltage and the VDS monitoring for each power MOSFET, ensure a safe driving operation of the power stage.

The EVLDRIVE102P evaluation board is thermally protected by exploiting both the hardware thermal shutdown protection embedded in the STDRIVE102P and also an onboard NTC sensor placed close to the power stage, for a firmware thermal protection.

The nFAULT pin, fully configurable via SPI for custom diagnostic, is connected to the control board and is also visible through LED indicators.

The EVLDRIVE102P evaluation board can support FOC and six-step motion control algorithms. In case the motor is equipped with positioning sensors, they can be connected to the connector for Hall-effect based sensors and for the encoder, in order to increase the precision of the control algorithms. Nevertheless, sensorless control algorithms can be implemented as well: each output phase of the inverter has a read-out network, which allows the sensing of the phase voltage/BEMF of the motor. In addition, the bus voltage sensing present on the board ensures that the control algorithms are properly implemented.

The EVLDRIVE102P evaluation board is compatible with a wide range of Nucleo control boards, thus allowing the evaluation of the STDRIVE102P together with different STM32 microcontrollers.