Low Voltage: 50A Sensorless FOC Reference Design for PM or BLDC Motors
Description
The design is a 30V to 54 V Brushless DC motor (BLDC) or Permanent-magnet Synchronous Motors (PMSM) controller for low voltage: high current: high power ebike: power tool: fan: and pump applications. The design uses the Texas Instruments UCC27211D MOSFET drivers: CSD19506KCS 80V NexFET™ power MOSFETs: TMS320F28027F MCU with InstaSPIN™ technology: TPS54360 buck converter: and LDOs. The design utilizes InstaSPIN-FOC technology to identify and tune PMSM or BLDC motor parameters: as well as control motor speed via an external throttle. Overall: the design focuses on demonstrating highly efficient control of high power: low voltage BLDC or PMSM motors.
Features
- Up to 500W power stage with sensorless FOC based InstaSPIN for BLDC motor: efficiency: >90% over full input range30 V to 54 V input voltage range: 50A peak output current capabilityFull protection features: includes Over Current Protection (OCP): Over/Under Voltage Protection (OVP/UVP): over load: under load: lost phase: phase unbalance: stall: motor over temperature: power module over temperature: lost communicationAutomatic motor parameter identificationHigh performance speed control includes high trajectory changes and speed reversal capability using InstaSPIN-FOCFlying start capability to synchronize to already moving motor
Applications
Product Categories
- C2000 real-time microcontrollers