- Toroidal shape → Lower magnetic stray fields → Better EMI/EMC compliance
- Electromagnetic compatibility (EMC) with connected components/circuits
Description
How it behaves
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When a common-mode signal is applied the current travels in the same direction through both coils → magnetic core flux weakens → impedance is low
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When a differential-mode signal is applied the current travels in the opposite direction through the coils → magnetic core flux builds up → impedance is high
What do Differential-Mode Chokes aim to solve
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Lower magnetic stray fields → better EMI/EMC
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Electromagnetic compatibility (EMC) with connected components/circuits
| Voltage (RMS/peak) | 400V / 550V |
| Current (RMS/peak) | 70A / 80A |
| DC Resistance | ~10mΩ |
| Inductance | ~ 2mH |
| Q Factor * | < 10 |
| Frequency ** | 300Hz - 400kHz |
* At operating frequency (High Q at operating frequency, Low Q at noise frequency)
** High frequencies, especially above 300kHz, will limit power handling
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- Power line EMC filters
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→ Buck, Boost and Buck-Boost
Frequently asked questions
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