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Boost converter capacitor charging question

  1. Mar 5, 2017 #1

    I don't understand this part. When the inductor is charging, the capacitor current should be decreasing because its supplying the load. When the inductor is discharging (after DT), the capacitor should be charging and hence the current should be increasing, but in the figure its decreasing, why is that so ?
  2. jcsd
  3. Mar 5, 2017 #2


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    If the capacitor is charging, the charging current should decrease with time. Steady state for both charging and discharging of a capacitor is 'zero current' , which is why the current in both the cases is decreasing with time.
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