Description

How it behaves

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What do AC Power Chokes aim to solve

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  • AC circuit filter → attenuate high frequency noise, in series with current pathway, from harmonics in AC current → “AC choke” or “ AC power choke”
  • Maintain inductance over specified frequency range
+ Low parasitic capacitance → High self-resonant frequency > 5MHz *

* High inductance or inductors with many turns → lower self-resonant frequency

Voltage (RMS/peak)
800V / 900V
Current (RMS/peak)
50A / 100A
Min. current ripple **
2A - 5A
Max. power ***
20kW
DC resistance (Rdc)
~10mΩ
Inductance
< 1 mH
Q factor ****
> 400
Frequency *****
10kHz - 1MHz


** Higher frequency/Lower duty-cycle → lower current ripple
*** Power range can be extended when necessary
**** Depends on working frequency range
***** High frequencies, especially above 300kHz, will limit power handling

  • Passive filters
  • Resonant and phase-shift converters/inverter topologies

Frequently asked questions

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