Motor
Control
Motor Control Engineering & Motor Controller Design
Adapting a drive to a new motor type, squeezing out efficiency, and hitting cost targets — all while keeping the platform production-ready — rarely happens on schedule. Control theory, power electronics, firmware, and real-time networking each pull in a different direction, and the integration risk lands on your roadmap.
Promwad closes that gap by plugging into your design project at any stage. Our motor control solutions adapt to new motor types while staying cost- and energy-efficient. We design the hardware and software platforms behind motor control and power electronics systems for automotive, industrial, and robotics.
We are proud members of the EtherCAT Technology Group, PI Community, OPC Foundation, and CLPA!
Why Promwad
A motor control project succeeds or fails at the seams — where control algorithms meet silicon, and firmware meets the power stage. That is exactly where our team lives.
Our Motor Control Expertise
From proof of concept to mass production, we guide you through every step of your journey.
Motor control devices we design
– Variable-frequency drive (VFD)
– Servo drive
– Soft starter
– Multi-axis motion controller
– Stepper motor controller
Main motor types we support
– Brushed DC motor
– Brushless DC motor (BLDC)
– Induction motor (ACIM)
– Permanent magnet synchronous motor
(PMSM)
– Stepper motor
Our Motor Control Design Services
Motor control design services at Promwad encompass a wide range of engineering solutions for motors and robotics across various domains. We are ready to guide you through every step of your journey – from proof of concept to mass production.
Motor Control Algorithms
Mathematical modelling is widely used in software development for complex motor control systems to evaluate the performance of developed solutions and choose the best one before any prototypes are made.
We use mathematical modelling and simulation to evaluate control performance and choose the best option before any prototype is built.
Control Algorithms We Use in Our Designs
- Scalar control V/f (Volts per frequency) control
- Stepper motor control
- SVPWM/SPWM/PWM control
- 3-phase 6-step control
Vector control
- DTC (Direct torque control)
- FOC (Field-oriented control)
Sensorless/sensored
- FOC for ACIM
- FOC for PMSM
- FOC for BLDC
Servo drives
- for PMSM
- for BLDC
- for ACIM
Our Tech Stack
EtherCAT, PROFINET, POWERLINK, EtherNet/IP, Modbus TCP, IO-Link, PROFIBUS, Modbus RTU, CANopen, RS232, RS485
SSI, BiSS, Hiperface DSL, EnDat, absolute and incremental encoders
C, C++, Rust, Verilog, VHDL
ARM, RISC-V, MIPS, FPGA
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NXP RTCESL (real-time control embedded software libraries)
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STMicroelectronics STM32 Motor Control SDK (MCSDK)
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Texas Instruments C2000 motor control libraries
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Microchip motor control libraries (dsPIC33 / PIC32)
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Renesas Motor Workbench
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Custom FPGA implementation of motor control algorithms
Texas Instruments, Microchip, NXP, STMicroelectronics, Renesas, Infineon, Intel, Xilinx, Lattice, Analog Devices
Application Areas
Our motor control and power electronics platforms ship into demanding, real-world environments:
Automotive & e-mobility
actuators, pumps, and auxiliary drives for electrified vehicle subsystems.
Industrial automation
servo and motion drives integrated over real-time industrial networks.
Robotics & power electronics
torque/speed control for robotic and mobile platforms; converters, charging units, and power supplies.
The Shift Every Drive Team Is Facing: Wide-Bandgap, Sensorless, Safety-Ready
Motor control is moving off legacy ground. Silicon IGBT/MOSFET stages are giving way to wide-bandgap SiC and GaN; at the same time, sensored scalar control is giving way to sensorless field-oriented control.
The payoff is higher efficiency, greater power density, lower audible noise, and fewer sensors to wire and fail. The challenge is that faster switching, rotor-position estimation, and real-time determinism raise the engineering bar sharply.
Where we take your platform:
From (legacy) | To (modern, production-ready) |
| Silicon IGBT/MOSFET power stage | SiC / GaN wide-bandgap inverter for higher efficiency and power density |
| Sensored, Hall-based commutation | Sensorless FOC |
| Fixed scalar V/f control | Vector control (FOC/DTC) with online parameter identification and auto-tuning |
| Manual, one-off tuning | Model-based design validated in simulation before the first prototype |
| Bolt-on safety | Functional-safety-ready architecture aligned to your target standard |
Because our team applies these algorithms across FPGA, embedded Linux, and MCU, we can match the estimator and switching strategy to your real cost, performance, and thermal budget — instead of forcing your product onto a fixed reference design.
Our Case Studies in Motor Control
How We Ensure Quality
Our process is built to de-risk your drive from concept to the production line.
Trusted by Tech Leaders
Let's Advance Your Motor Control System
From proof of concept to mass production — talk to the engineers who'll build it.
FAQ
What is motor control?
What is a motor controller and how does it work?
What types of motor controllers exist?
What is sensorless FOC, and when should I use it?
When should sensorless FOC be combined with sensored feedback?