Electronic commutation
Motor phase switching coordinated with Hall, encoder or application-defined sensorless feedback.
Why integrate the controller?
One Defined Motor-and-Control System
Integration can shorten wiring, reduce cabinet space and simplify machine assembly, but it also places electronics close to motor heat, vibration and the operating environment. SDT therefore treats the motor, controller, feedback, thermal path, protection and interface as one engineered system—not as a controller added after the motor has been selected.
Integrated architecture
Motor, Feedback and Control in One Package
The cutaway shows how controller electronics can be packaged within the motor envelope while preserving the electromagnetic assembly, bearings and mechanical output interface.
- Compact integrationReduced external wiring and cabinet-space demand.
- Coordinated thermal designMotor losses, electronics temperature and cooling path assessed together.
- Application-defined interfacesFeedback, connectors, shaft, flange and protection selected around the equipment.
Integrated-controller platforms
Eight Individual Frame Sizes
Explore the 24, 40, 50, 60, 80, 90, 110 and 140 mm platforms individually. Frame diameter defines the mechanical starting point; voltage, power, torque, speed, motor length and controller configuration are confirmed against the selected application.
Preliminary technical selection
Individual Platform Release Basis
The published source confirms an overall 0.012–0.35 N·m envelope for the earlier 24, 60, 80 and 90 mm family—not a rating for each frame. Individual voltage, current, torque, speed and power are released after the motor length, winding, controller, cooling and duty are selected.
−10 to +45 °CPublished operating-temperature range0–5 VDCExternal speed-command referenceTwo-quadrantIntegral speed-control architectureHall feedbackBuilt-in rotor-position reference
| Frame | Mechanical platform | Controller arrangement | Technical release status |
|---|---|---|---|
| 24 mm | Miniature cylindrical | Integral drive | Published reference platform; rating released by selected motor length and winding |
| 40 mm | Compact cylindrical | Configured integrated route | Voltage, torque, speed and power released against the application |
| 50 mm | Cylindrical integral-drive | Integral electronic drive | Voltage, torque, speed and power released against the application |
| 60 mm | Cylindrical | Integral two-quadrant control | Published reference platform; rating released by selected motor length and winding |
| 80 mm | Square flange | Integrated electronics | Published reference platform; rating released by selected motor length and winding |
| 90 mm | Motor and controller | Integrated or adjacent control | Published reference platform; final package released against the application |
| 110 mm | Higher-output square flange | Matched open or integrated control | Motor, electronics and thermal arrangement released as one configured system |
| 140 mm | Large integrated platform | Coordinated housing and cooling | Motor, electronics and mechanical interface released as one configured system |
Integrated BLDC Technical DatasheetThree-page PDF covering the common control architecture, all eight frame-size platforms and the basis for releasing application-specific ratings.
Technical PDFRequest Technical DatasheetTechnical architecture
What the Integrated System Can Include
The precise feature set follows the motor duty and equipment interface; not every function is included in every platform.
Speed, torque or position
The control mode, operating range and transient response are selected around the machine duty.
Feedback and I/O
Hall sensors, encoders, direction, enable, braking, status and application-specific inputs can be reviewed.
Communications
Analogue commands, PWM, serial or fieldbus interfaces can be considered where the selected controller architecture supports them.
Protection
Current limiting, temperature monitoring, undervoltage, overvoltage and fault handling are defined with the electronics partner.
Mechanical integration
Controller housing, connector direction, sealing, shaft, flange and cooling provisions are coordinated as one package.
Commercial supply routes
Choose the Appropriate Level of Integration
Start with the lowest-complexity route that genuinely meets the equipment requirement. Hover, focus or tap each route for the engineering consequence.
Matched motor and controller engineering
110 mm Motor with Matched Controller
Where the controller cannot be packaged within the motor envelope, SDT can engineer and validate the motor, feedback and controller as one matched system.
- Complete square-flange motor and output shaft
- Visible controller electronics and connection architecture
- Applicable to separate, adjacent or integrated packaging studies
Application definition
Information Needed for a Credible Starting Point
Established suppliers publish detailed ratings for fixed series. SDT’s configured route starts by defining the operating envelope before committing the motor, electronics and package.
Electrical supply
Nominal and maximum DC-bus voltage, available current and supply behaviour
Operating points
Continuous and peak torque, speed range, acceleration and duty cycle
Control requirement
Speed, torque or position control; response, regulation and stopping behaviour
Feedback
Hall, incremental or absolute encoder, resolver, sensorless operation or customer interface
Commands and communications
Analogue, PWM, discrete I/O, serial or fieldbus requirement
Environment
Ambient temperature, ingress protection, vibration, EMC and regulatory context
Mechanical envelope
Frame, length, shaft, mounting, connector access, gearbox, brake and cooling space
Production requirement
Prototype quantity, validation evidence, annual volume and lifecycle expectations
Suitable equipment duties
Where Integrated BLDC Platforms Add Value
01Automation and positioning
02Pumps, fans and blowers
03Medical and laboratory equipment
04Material handling and conveyors
05Mobile and battery-powered equipment
06Foodservice and commercial equipment
“Integrated controller” does not by itself define control quality, EMC compliance, protection level or environmental suitability. These depend on the selected hardware, software, feedback, enclosure, thermal design and validation plan.
Define the complete motor-and-control requirement
Discuss an Integrated BLDC Platform
Share the voltage, torque-speed points, duty, feedback, communications, envelope, environment and expected production volume.