SinusLeistungsSteller - SLS Development/2026

In this section we provide frequently news on development and progress ...
Details about the SLS are found   here (click...)

02.07.2026:

A customer asked us for a very small sine-wave controller (not larger than a postage stamp or a USB stick!) for integration into their mass-produced devices... This led to a close collaboration and, ultimately, a custom-tailored controller that meets all the customer's requirements.
To date, several thousand units of this custom version have been manufactured and delivered to the customer.

Naturally, we have also derived a standard controller from this that covers multiple voltage classes (12V, 24V, 48V) as a single assembly variant.



Special features and differences compared to the SLR:
 - all connections are tool-free (2.8mm Faston or 1.0mm JST connectors)
- connectors for a potentiometer and push-button/switch (this replaces the optically isolated PWM input)

...the mSLQ offers all the features of the SLR:
- full integration into the SLS Windows monitor
- sensorless field-oriented control
- compatible parameter sets (SLR <=> SLQ)
- all SLR derating modes have been retained
- all software options (e.g., field weakening) are available
- the potentiometer input is mapped to internal setpoints via the signal curve
- forward and reverse operation as well as speed/torque control are possible
- aluminum cooling surface on the bottom side for effective cooling

... the mSLQ is also optionally available with:
 - 512 KB flash memory (for the trace function)
- CAN bus interface
- LSM6DSR 6-axis accelerometer (currently only some prototypes)
- external infrared interface (IrDA) up to 115 kbps




The mSLQ variants complement the SLR family by addressing lower voltage and current ranges and are optimized for cost-effective, high-volume production. At the upper end of the range, we will expand the SLR family with the planned SLQi-70-400, SLQi-85-320, and SLQi-120-200 models.