Author: webmaster

Please welcome the newest member of the rotabench® family: the rotabench® 6P 100/60E power stage!

If you need a current amplifier, that converts the PWM signals from your DSP system into a high current 3-phase rotating field to power an electric motor, this new device may come handy.

It can generate currents up to 100 Ampere RMS per phase and can handle DC-Bus voltages up to 60 VDC nominal. This makes it the perfect tool for engineers who develop or test motors with a nom. Voltage of 12, 24, 36 or 48 Volt.

The typical application is in a lab or test bench environment, with the main purpose either to test the motors or to test the control algorithms for a particular motor. Typical motors are 3-phase automotive or eBike motors, or EC-motors for battery-powered tools.

It comes in a 3 HU 19’’ rack chassis with integrated cooling and D-Sub connectors, so you can easily assemble it in your test bench rig.

Go to the product page for more information

Here is a short video of the initial startup of one of our rotabench 6P 100/60 inverters with 100A RMS cont. and 60 Volt DC Bus voltage (max.). This device is going to Signaltec, where it will be used to test their current transducers under realistic conditions with pulsed currents. Signaltec already tests their current sensors in a wide frequency range from DC up to 500 kHz sinusoidal signals. The inverter gives them the possibility to test the sensors at different fundamental frequencies, variable switching frequency and distorted current waveshapes.

rotabench 6P inverters are designed for test bench and laboratory use with PMSMs, which need low voltage and high currents. Typical use cases are test benches for automotive electric motors or battery powered tools in the 12V to 48V range. The system is engineered by test bench developers for test engineers. Unlike other inverters, they provide a sophisticated user interface with an unparalleled usability and extensive visualization. Finally, an inverter is no longer a black box; you can see what it is doing, if you want to.

This is the first blog entry after our hompage re-design in July 2024