STEVAL-CTM015V1 [STMicroelectronics]

The STEVAL-CTM015V1 evaluation kit provides a complete solution for a three-phase switched reluctance motor (SRM) drive based on asymmetric half bridge flexible converter topology.

The kit consists of the STEVAL-CTM015A1 driver board, the STEVAL-CTM015A2 power board and a 1 K/W heat sink already assembled.

The driver board features a DC-DC power supply based on VIPER26L, LD1117S50, LD1117S33C, STM32F303CBT6 as MCU, and L6395D high voltage, single-chip high and low-side gate drivers for N-channel power MOSFETs or IGBTs.

The power board features an insulated metal substrate (IMS), NTCs for thermal protection, decoupling gate resistors for each IGBT, LMV331I comparators for overcurrent protection, STGB30H60DFB trench gate field-stop, and STTH15RQ06 Turbo 2 soft ultrafast recovery diode.

By default, the STEVAL-CTM015V1 features the three-shunts resistors current sensing network based on TSV991IL, but it can also host three Insulated Current Sensors (ICSs).

Soft-chopping speed control firmware, based on STM32F303CBT6 microcontroller, is available.

• Driver board (STEVAL-CTM015A1)
  • Based on three L6395D high voltage single-chip high and low-side gate drivers, with independent control of high and low-side
  • STM32F303CBT6 microcontroller
  • Support for quadrature incremental encoder and Hall effect rotor position sensor
  • DC-DC power supply based on VIPER26LD, LD1117S50TR, and LD1117S33CTR
  • Support to host three Insulated Current Sensors (ICS) for phase current reading
• Power board (STEVAL-CTM015A2)
  • Insulated metal substrate (IMS)
  • Hosts six STGB30H60DFB IGBTs and six STTH15RQ06 diodes in a D2PAK-2 package
  • Decoupling gate resistors
  • NTC sensing network for overheat protection
  • LMV331ICT comparators for overcurrent protection
  • Three-shunt resistors sensing network and TSV991IL OpAmps for three-phase current reading
• Heat sink for heat dissipation featuring a thermal resistance of 1 K/W