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Motor Control
Systems

Field-Oriented Control for BLDC and PMSM. From drone ESCs
to industrial drives. Sensorless and sensored architectures.

96%+
Efficiency
50+
Safety Interlocks
BLDC & PMSM
Motor Types
FOC
Control Algorithm

Complete Motor Control Engineering

We design motor control systems that deliver maximum torque and efficiency. Our expertise spans from high-performance drone ESCs to industrial PMSM drives — with production-proven FOC algorithms, gate driver design, and integrated safety architectures.

FOC Algorithms

Sensorless and sensored Field-Oriented Control with Space Vector Modulation. Optimized current and speed control loops.

Gate Driver Design

High-side and low-side gate driver circuits. Dead-time optimization, bootstrap design, and desaturation protection.

Regenerative Braking

Energy recovery during deceleration. Configurable braking profiles with smooth torque transitions and battery charging.

Thermal Derating

Intelligent power derating based on MOSFET, motor, and ambient temperature. Protects components while maximizing performance.

Technical Capabilities

Deep expertise across motor control engineering.

Control Methods

  • Field-Oriented Control (FOC)
  • Space Vector Modulation (SVM)
  • Sinusoidal PWM (SPWM)
  • Trapezoidal / Six-step commutation
  • Direct Torque Control (DTC)

MCU Platforms

  • TI C2000 (F28379D, F280049C)
  • STM32 (G4, F4 motor control)
  • TI MSPM0 (cost-optimized drives)
  • InstaSPIN / MotorControl SDK
  • Bare-metal & FreeRTOS

Motor Types

  • BLDC (sensorless & Hall-based)
  • PMSM (surface mount & IPM)
  • Multi-phase (5, 6, 9 phase)
  • Stepper motor control
  • Switched reluctance (SRM)

Safety Features

  • Over-current / Short circuit protection
  • MOSFET desaturation detection
  • Thermal derating & shutdown
  • Stall detection & recovery
  • Watchdog & safe-state management

From Concept to Production

A structured approach to motor control development.

01
Motor & Load Analysis
Motor characterization, load profiling, control strategy selection
We characterize the motor parameters (Ke, Kt, inductance, resistance), analyze the load profile, and select the optimal control strategy. This determines inverter topology, switching frequency, current sensing approach, and MCU requirements.
02
Power Stage & Firmware
Inverter design, gate drivers, FOC algorithm implementation
Parallel hardware and firmware development. Power stage design includes MOSFET/IGBT selection, gate driver circuits, current sensing, and DC bus filtering. Firmware covers FOC implementation, PID tuning, sensorless observer, and communication interfaces.
03
PCB & Dyno Testing
Layout, thermal design, dynamometer validation
PCB layout optimized for EMI, thermal performance, and power loop inductance. Dynamometer testing validates efficiency, torque curves, speed range, and thermal behavior across the full operating envelope.
04
Tuning & Production
Control loop tuning, EMC testing, production handoff
Fine-tuning of control loops for optimal transient response and stability. EMC compliance testing and mitigation. Production handoff includes complete design package, calibration procedures, and end-of-line test specifications.

Need a motor controller designed?

Let's discuss your motor control requirements.

Get in Touch
mohit@maqlabs.com
+91 8600175076