25kW Motor Controller

25 kW Motor Controller

Experience maximum power and efficiency in a compact package with siliXcon’s SL Series 25kW Brushless Motor Controller. Engineered for unprecedented power density, it delivers unmatched performance while minimizing weight and dimensions. This cutting-edge controller offers sensor-less control, regenerative braking, comprehensive protections, galvanic isolation, and a host of other advanced features as standard.

The versatile SL Brushless Motor Controller powers common electric motors across industrial, automotive, and marine applications where space is tight. siliXcon optimized algorithms and components to maximize capabilities in a tiny footprint. The SL Series 25kW Motor Controller delivers a balanced blend of power, efficiency, and mobility without compromising performance or adding bulk.

up to 25 kW
nominal power with steady 60°C at the heatsink
up to 84 V
355 A rms( 600 A peak )
1250 g


Our advanced Brushless Motor Controllers for Permanent Magnet Synchronous Motors (PMSM), Brushless DC Electric Motors (BLDC) and IPM Motors offer precise speed and torque control, enhanced safety features, maximum efficiency, and exceptional performance tailored for various e-mobility applications across land, sea, and air. Engineered by our team of experts with a unique blend of engineering prowess and industry knowledge, these state-of-the-art controllers are designed to meet the most demanding power and safety standards.

The siliXcon Motor Controllers provide an elevated user experience with unmatched smoothness and controllability, combining exceptional performance with cutting-edge technology that ensures our customers stay ahead of the curve. From electric vehicles and industrial machinery to marine propulsion systems and specialized equipment, our controllers cater to a growing variety of e-mobility sectors, delivering innovative solutions that drive the future of sustainable transportation and efficient machinery.

Electric Vehicles

25 kW SL Controller Series


The highest power output, wide range of setup possibilities and automotive-grade enclosure housing make this 25kW Motor Controller stand out from the crowd.


zero ramping, quick command reaction, ability to anticipate

Rugged design

almost impossible to damage

Sensorless mode

with full torque right from the startup

Sensor-sensoless modes

combinations both for BLDC and FOC control methods

Vehicle Control Unit

connectivity, enough computing capacity, modularity

Unique Telemetry

precise measument methods, powerful R&D tools


complex platforms, easy to update (FW), easy to customize (HW)

All types of motors

BLDC/PMSM - radial+axial flux, IPM, reluctance, asynchronous etc.

Easy deployment

powerful SW Tools to help with the final integration

  • Box with aluminium bottom pad: 148 x 96 x 64 mm
  • Weight: 1250g
  • Motors: PMSM (BLDC, BLAC), Induction
  • Vector drive with DTC and FOC
  • Block commutation Drive with DTC and hybrid sensorless control
  • Zero-RPM sensorless control
  • MOS-FET power stage with all kinds of protection incl. phase short circuit
  • Designed for highest dynamic response
  • SOC estimator
  • Current and voltage logging
  • Capacitors pre-charge option
  • Powerful SW Tools to help with the final integration
  • Motor temperature input
  • Option “a” – UVW Hall sensors; Sin-Cos
  • Option “r” – SSI / BiSS;  A/ B encoder; resolver
  • 4x analog input – ADIN (range from 0V to BATT+)
  • 5x galvanically isolated analog inputs (range from 0V to 10V)
  • On / Off input switch, safety switch, automatic shutdown
  • Capacitor pre-charge
  • 3x contactor output with PWM and current control
  • Charge input up to 15 A with current measurement

For pinout, please check the corresponding datasheet in the download section.

  • Multiple addressed interfaces for service, debugging, application and firmware management
  • USB programming interface
  • UART (galvanically isolated)
  • CAN-bus (galvanically isolated)
  • Power: M6 terminals
  • Signals & communication: AMPSEAL 35-pin male connector
  • USB-B conector

Build your enquiry

If you want to quickly receive a comprehensive offer tailor-made for your project, please submit the online form.

Controller Firmware

Firmware for siliXcon brushless motor controllers consist of two major part:

  • Motor control algorithm
  • Application

The application is responsible for the whole system behaviour. It transfers inputs to outputs.

The algorithm is responsible for controlling the motor. Protecting the motor, battery, and the controller.

The application and the algorithm is hardware independent. This mean, you can scale your a project without any problem.

Custom Application

It is not possible to have controller with behaviour, that suit to all use-cases. This is why we can provide you completely custom solution.


All Brushless Motor Controllers support our scripting language. Using these script you can customise existing application or write your own from ground up.


  • Ophion is an FW application designed for generic usage with electric motor drives.
  • It can be used in a wide range of applications from a very simple pump control to a complex position servo drive.
  • It is an HW-independent application that can be uploaded to the whole siliXcon’s controllers portfolio.
  • It has several predefined control modes which cover a lot of field of operation, which allows very fast deployment.
  • Ophion can also exploit all available motor control modes to enhance its potential even more.


  • LYNX is a universal control system offering off-the-shelf complete solutions for traction systems.
  • It has several configurable logical inputs, which can be used for gathering data from external components (throttle, brake, pas, switches, etc). These signals are processed inside the system and define how the motor reacts, according to the parametrisation of the LYNX.
  • This approach can eliminate a need for a VCU (vehicle control unit) – controller with this FW is capable to process most of the needed signals.
  • It is an HW-independent application that can be uploaded to the whole siliXcon’s controllers portfolio.

Our advanced firmware delivers exceptional performance and flexibility for a wide range of applications. With powerful scripting, you can customise existing applications or create new ones, ensuring precise control and optimal performance tailored to your needs. Seamless integration with siliXcon brushless motor controllers for streamlined implementation, improved reliability and unparalleled efficiency. Transform your motor drive systems with our innovative and cutting-edge firmware.

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