This design demonstrates a complete high-power synchronous/BLDC motor control system. It can support up to 10.5kW of power sourced from 3-phase Y-connected power mains. The unit consists of a high-performance Arm® core microcontroller that handles motor control and power supply PFC regulation. These operations occur within an isolated environment and are controlled by optocoupled IGBT drivers for a set of high-voltage IGBT half bridges. The MCU device is controlled via an isolated RS-485 connection to an external control unit, with the option to use a CAN interface.

System Benefits:

  • Complete system with single line control that is possible to scale up to eAI features for predictive maintenance
  • Controls for the motor and power supply PFC only require a single RA6T2 MCU
  • Control unit connection via RS-485 or CAN interface




  • HVAC and heat pump compressors
  • Ventilator motors

Winning Combinations Interactive Diagram

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4:3 ratio Sheet.1 Sheet.2 Sheet.3 Sheet.4 EU188 EU188 EU188 3-Ph Mains 3-Ph Mains 3-Ph Mains Isolated Amplifier-1 Isolated Amplifier Isolated Amplifier IGBT Driver-1 IGBT Driver IGBT Driver RS-485 TRX RS-485 TRX RS-485 TRX Hot Side Power Hot Side Power 3-Ph PSU+PFC 3-Ph PSU+PFC 3-PhPSU+PFC Connector Arrow Ground Sheet.43 Sheet.44 Resistor Resistor.46 Resistor.47 Resistor.48 Sheet.70 Sheet.71 Sheet.72 Sheet.73 Sheet.75 Sheet.77 Sheet.78 Connector 1.158 Sheet.80 Sheet.81 Sheet.82 Sheet.83 Sheet.84 Sheet.85 Sheet.86 Connector 1.158.87 Sheet.88 Connector 1.89 Sheet.90 Sheet.97 Sheet.94 Sheet.95 Sheet.96 Sheet.98 Sheet.99 Sheet.100 Sheet.101 Gate Driver Gate Drive Gate Drive VOUT Monitor VOUT_Monitor VOUT_Monitor ISENSE Monitor ISENSE_Monitor ISENSE_Monitor VAC/IN Monitor VAC_IN_Monitor VAC_IN_Monitor 2 2 2 2 Sheet.108 8 8 8 8 Sheet.113 GND GND GND VCC VCC VCC Sheet.116 Connector 1.158.117 Isolation Isolation Isolation Sheet.120 Sheet.121 Sheet.122 Sheet.123 Sheet.124 Sheet.125 Sheet.126 Sheet.127 Sheet.128 Sheet.129 Connector 1.158.131 Connector 1.158.132 Connector 1.158.133 Connector 1.158.134 Connector 1.158.135 Connector 1.158.136 Sheet.138 Sheet.139 Sheet.140 Sheet.142 Sheet.143 Sheet.144 Sheet.145 Connector 1.158.146 Connector 1.158.147 Ground.148 Sheet.149 Sheet.150 9V 9V 9V Isolation Isolation Isolation 560V DC 560V DC 560V DC 9V/800mA 9V/800mA 9V/800mA 5V/8W 5V/8W 5V/8W Isolated Amplifier-2 Isolated Amplifier x4 Isolated Amplifier x4 Sheet.155 Sheet.160 Sheet.63 Sheet.64 Sheet.65 Sheet.66 Sheet.67 Sheet.68 Sheet.161 Sheet.162 Sheet.163 Sheet.164 Sheet.165 Sheet.166 Sheet.167 IGBT Driver-2 IGBT Driver x6 IGBT Driver x6 Sheet.118 IGBT IGBT x6 IGBT x6 Motor Sheet.169 Sheet.170 M M Flyback Flyback Flyback AC/DC Buck AC/DC Buck AC/DC Buck MCU MCU MCU MCU PWM PWM PWM ADC ADC ADC SCI SCI SCI PWM PWM PWM ADC ADC ADC Connector Line Isolation .174 Isolation Isolation Sheet.175 Isolation .176 Isolation Isolation Connector double arrow
Exiting Interactive Block Diagram