An efficient active ripple filter for use in DC-DC conversion

  title={An efficient active ripple filter for use in DC-DC conversion},
  author={D. C. Hamill},
  journal={IEEE Transactions on Aerospace and Electronic Systems},
  • D.C. Hamill
  • Published 1996 in
    IEEE Transactions on Aerospace and Electronic…
When low ripple is required from a switched mode dc-dc converter, dissipative active filters offer an alternative to passive LC and coupled inductor filters. Analytical and experimental results are presented for a simple active ripple filter. The filter employs a pair of current transformers as sensors for feedforward and feedback control and two metal-oxide-semiconductor field-effect transistors (MOSFETs) as cancellation current drivers. Measurements demonstrate good ripple attenuation up to 5… CONTINUE READING
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