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Significant reduction of the overvoltage
Due to the low inductance design of the IGBT module, the bus bar, and the film capacitor, voltage overshoot is significantly reduced when switching.
Emissions using the EPCOS HV DC EMC filter
- Even with an unshielded DC cable, the EPCOS HV DC EMC filter reduces conducted interference by up to 70dB, equivalent to a factor of 3000
- Enables a considerable reduction in additional distributed EMC measures necessary for the individual system components
- Low weight and compact dimensions, as small as 121mm x 52mm x 52mm
- Also available with high filtering effect in the long-wave spectrum, 150kHz to 300kHz
Attenuation of common-mode interference
- Steep pulse edges, and motor cable L cause voltage spikes
- May result in arcing, motor winding failures
- High C parasitic motor windings and housing
- Results in Ileak flowing through the motor bearing
- Inverter output routed through ferrite ring core to lower dv/dt
- Common-mode interference leakage currents lowered to a non-critical level
- Ensures limits of Classes I - III are observed
- Ferrite materials T65, N30, N87 are recommended
Infineon Technologies
Published: 2019-10-01
| Updated: 2024-02-26

