How should we add a low-pass filter to the converter?

All Questions › Category: Power Electronics › How should we add a low-pass filter to the converter?
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Chetan Shidling Staff asked 5 years ago

Options:
 

  1. Use an op-amp filter circuit
  2. Use an L-C filter circuit
  3. Use an R-C filter circuit
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Chetan Shidling Staff answered 5 years ago

Use an L-C filter circuit, is the correct answer. We should employ high-efficiency filter elements: inductors and capacitors can filter with high efficiency, but op-amps and resistors consume substantial power.