230V/250W, Hi-η Sensorless Brushless DC Motor Drive with 30% Reduced Bulk Capacitor Reference Design


Design files


The TIDA-00472 is a discrete IGBT-based three-phase inverter for driving brushless DC (BLDC) motors rated up to 250 W, for example, used in cooker hoods, using a sensor-less, trapezoidal control method. The design provides software implementation for DC bus voltage ripple compensation resulting in 30% reduction in the DC bus capacitor requirement and reduced overall BOM cost. The cycle-by-cycle overcurrent protection feature protects the power stage from large current spikes and the board can work up to 65°C ambient.  This design has also been tested to pass EN55014 standards for conducted emissions, Surge and EFT.

  • 250W Mains Powered BLDC Motor Drive with Sensor-less Trapezoidal Control using InstaSPIN-BLDC
  • Software Implementation for DC Bus Ripple Compensation Resulting in 30 % Reduced DC Bus Capacitor
  • Current Sensing using Single Shunt on the DC Bus Return for Cycle-By-Cycle Current Limit and Protection
  • The High Efficient Circuit Board Enable Working up to 200W without heat sink up to 65 OC ambient temperature
  • Hardware design to meet surge, EFT and conducted emission as per EN55014
  • This Design is a Tested, Ready to Use Hardware and Software Platform for Drving High Voltage BLDC Motors
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.


Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement


Files used for 3D models or 2D drawings of IC components

TIDCB26.ZIP (1038 K)

Design file that contains information on physical board layer of design PCB


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
* Design guide 230-V/250-W, Hi-η Sensorless BLDC Motor Drive w/ 30% Reduced Bulk Cap Ref Design (Rev. A) May 12, 2016
Technical article Design an energy-efficient, lower-acoustic cooker hood with an elegant user interf PDF | HTML Mar. 29, 2016
Technical article Acoustic noise in home appliances due to torque ripple in motor drives – part 2 PDF | HTML Feb. 25, 2016
Technical article Acoustic noise in home appliances due to torque ripple in motor drives – part 1 PDF | HTML Feb. 18, 2016

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TIDA-00473 10W Bias Supply for Brushless DC Applications with >75% Efficiency at Low Load Reference Design

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