| 摘要 |
<p>A filter for shunting currents with specific frequencies includes a main filtering inductor (L1), an auxiliary filtering inductor (L2) and a series resonant circuit for a specific frequency comprising an inductor (L3) and a capacitor (C). The resonant frequency of the series resonant circuit corresponds to the frequency of the ripple current which flows through the main filtering inductor. The series resonant circuit provides a low-impedance path for the ripple current and thus effectively reduces the capacity of the inductors and reactive currents.</p> |
