The high dv/dt of the leading edge of voltage waveforms from variable speed electric motor drives can lead to motor bearing failure, motor winding short circuits, and EMI compliance challenges. Use our simulation tools to learn about dv/dt and check out new integrated filters for dv/dt mitigation.

Motor drive waveforms

dv/dt Simulation

System designers often use rules of thumb based on cable length when determining installation of dv/dt filters. However, if the system voltage waveforms are simulated, the voltage rise times and peak voltages at the motor terminals can be determined much more accurately.

Use the Motor Voltage Waveform Simulation Tool on this site to simulate the voltage response at the motor terminals of a motor, cable, and drive system to learn about over-voltage or dv/dt issues in different applications.

dv/dt Mitigation – Integrated Filters

Passive filters are a common dv/dt mitigation method. However, they can be large, heavy, and expensive. Integrated dv/dt filters represent an opportunity to make output filters for power electronics, smaller, lighter, and more cost effective to manufacture.

Integrated dv/dt FIlter