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STMicroelectronics STEVAL-CTM012V1 Evaluation Board provides a reference design for a three-phase inverter based on the STSPIN32F0601Q BLDC Controller. The STSPIN32F0601Q embeds a 600V triple half-bridge gate driver and an Arm® Cortex®-M0 STM32 Microcontroller. High-voltage bootstrap diodes are also integrated, as well as anti-cross-conduction, deadtime, and UVLO protection on both the lower and upper driving sections. These features prevent the power switches from operating in low efficiency or dangerous conditions. Matched delays between low and high-side sections guarantee no cycle distortion. The inverter power stage of the STEVAL-CTM012V1 Evaluation Board also features six STD8N60DM2 N-Channel MDmesh™ MOSFETs.
The STMicroelectronics STEVAL-CTM012V1 Evaluation Board supports both one-shunt and two-plus one-shunt sensing topology. The shunt topology can easily be set by populating a set of jumpers.
The Evaluation Board can also be configured to implement sensorless Field-Oriented Control (FOC). This allows driving permanent magnet synchronous motors (PMSMs) and brushless DC (BLDC) motors to cover a wide range of applications, such as refrigerator compressors, pumps, fans, and industrial appliances.
The STEVAL-CTM012V1 Evaluation Board is compatible with a wide range of input voltages. The power stage of the Evaluation Board features a VIPER122 High Voltage Converter, which generates the +15V and +3.3V supply voltages required by the application.
The companion firmware for the STEVAL-CTM012V1 Evaluation Board is X-CUBE-MCSDK, which is used along with the STSW-CTM011 firmware example for compressor motors. The user can compile, debug, and configure the firmware through the STM32CubeIDE Integrated Development Environment software.
To compile, debug, and configure the firmware requires a connection to a PC running the STM32CubeIDE Integrated Development Environment software. Connecting to the PC requires the STLINK-V3SET Debugger/Programmer Probe and the B-STLINK-ISOL Isolation and Voltage Adapter Board. An isolated USB-to-UART Adapter could also be used to connect the board to the PC.
The user will also need a three-phase brushless PMSM DC motor with a compatible voltage and current rating and either an AC mains power supply or an external DC power supply.
