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SX Controller

22.5 kW Automotive-Grade Brushless Motor Controller

The SX is the automotive-grade workhorse of the siliXcon controller family. Built for series production, it combines robust mechanical design with the thermal headroom needed for sustained high-power operation. Whether the application is an electric vehicle, industrial drive, or marine propulsion system, the SX is as comfortable on the production line as it is in the field.

28 kW peak
300 A RMS peak
84 V DC
700 g total
SX Controller

Key Specifications

Series SX Series
Nominal Power up to 22.5 kW (steady 60°C at the heatsink)
Peak Power up to 28 kW
Voltage up to 84 V
Peak Current (RMS) up to 300 A RMS (maximum continuous with external forced overcooling)
Burst Current up to 600 A
Weight 700 g
Power Density 40 kW/kg
Dimensions 80.6 x 139.3 x 47 mm
Motors PMSM (BLDC, BLAC), Induction
Drive Modes Vector drive with DTC and FOC, Block commutation
Connectivity USB, UART (isolated), CAN-bus (isolated)
Protection Overcurrent, overtemp, phase short circuit, galvanic isolation
40 kW/kg Power Density

Automotive-grade and production-ready – as comfortable on the assembly line as it is in the field.

Dynamics

Zero ramping, quick command reaction, ability to anticipate

Rugged Design

Almost impossible to damage – built to last in harsh environments

Sensorless Mode

Full torque right from startup without position sensors

Sensor-Sensorless Modes

Combinations for both BLDC and FOC control methods

Vehicle Control Unit

Connectivity, enough computing capacity, modularity

Unique Telemetry

Precise measurement methods, powerful R&D tools

Modularity

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

All Types of Motors

BLDC/PMSM – radial + axial flux, IPM, reluctance, asynchronous

Easy Deployment

Powerful SW Tools to help with the final integration

Controller Firmware

Firmware consists of two major parts: the motor control algorithm and the application.

Both are hardware independent — scale your project without any problem. The application handles system behaviour while the algorithm controls the motor, protecting the motor, battery, and controller.

All controllers also support our scripting language. Customize existing applications or write your own logic from the ground up.

Controller Firmware

Custom Application

We can provide you a completely custom firmware solution tailored to your specific use-case requirements.

OPHION

Simple analog motor control via potentiometer or PLC — for pumps, conveyors, and servo drives.

LYNX

Complete vehicle control system for scooters, bikes, and motorbikes with built-in power maps and 500+ functions.

FALCON

RC vehicle control for drones, RC cars, and boats with servo PWM input and safety features.

ECHO

Minimal firmware with no internal logic — full motor control via CAN or UART from an external VCU.

IGNIS

Starter-generator control for hybrid and range-extender applications with cranking sequence and overvoltage protection.

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