SX Controller Series

18 kW Motor Controller

The SX is automotive grade controller, it delivers maximum power, while keeping weight as low as possible. It is used in wide range of applications, especially in industrial and automotive sectors. Using the latest technologies it achieves extreme dynamics, maximum efficiency, sensor-less control or regenerative braking, all kinds of protection or galvanic isolation, all this with minimum dimensions. The SX Brushless Motor Controller is capable of driving all common types of electric motors.

up to 18 kW
nominal power with steady 60°C at the heatsink
up to 76 V
250 A rms( 400 A peak )
700 g


Our advanced Motor Controllers for Permanent Magnet Synchronous Motors (PMSM), Brushless DC Electric Motors (BLDC) and IPM Motors have been designed to cater to a growing variety of e-mobility applications to be used on land, sea and in the air.

The siliXcon Motor Controllers provide an elevated user experience, combining exceptional performance with unmatched smoothness and controllability. We’ve dedicated our unique engineering expertise to meet the most demanging power and safety standards across various e-mobility sectors.

Electric Vehicles

SX Controller Series


Suitable for automotive, marine, aerospace, automotive and other applications with the main focus on the high-series production.


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 measurement methods, powerful R&D tools


complex platforms, easy to update (FW), easy to customise (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

  • 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
  • Option “a” – a – hall, analog (sin-cos)
  • Option “r” – resolver
  • Option “d” – digital (SSI, BiSS, incremental encoder)


  • 5x General input
  • 2x Non- isolated digital input
  • 1x Output low side switch with PWM
  • 1x Motor temperature sensor input
  • 1x Motor position sensor input
  • Power: M6 terminals
  • Signals & communication: Superseal 1.0 connector
  • USB-C connector
  • 1x Isolated CAN
  • 1x Isolated UART
  • 1x Non- isolated UART
  • USB programming interface

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 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 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.

Other products

25kW Motor Controller_SL Series
SL Controller Series
38 kW/l
500 A
84 V
1250 g
up to25 kW
SC Controllers Series
SC Controller Series
45 kW/l
350 A
84 V
550 g
up to15 kW
AX Controllers Series
AX Controller Series
28 kW/l
70 A
60 V
150 g
up to3 kW