Multi-tier wave-filter and on-board power source dcdc conversion device

Abstract

The present invention discloses a multi-tier wave-filter and an on-board power source DCDC conversion device. The multi-tier wave-filter includes: N-tiered PCB boards arranged at intervals, wherein N is greater than or equal to 3; N−1-level output inductors arranged at intervals, wherein an output inductor at each level is connected to adjacent upper-tier and lower-tier PCB boards through its input end and output end, respectively; N−1-level output capacitors arranged at intervals, wherein an output capacitor at each level is correspondingly connected to PCB boards between a second tier and a Nth tier, respectively; and a filter output terminal connected to an output end of the N−1-level output inductor. The multi-tier wave-filter provided by the present invention not only achieves miniaturizing the wave-filter and decreasing installation space, but also better enables the high-current path at the output end of the DCDC converter to have heat dissipation, filtering, shielding and other properties.

Dependencies are inferred from the claim text.