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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