FILTER FOR DIGITAL AMPLIFICATION EMBEDDING SPEAKER EQUIPPED WITH AN INDUCTOR ON AN OUTER CIRCUMFERENCE SURFACE OF FILLER WHICH PENETRATES

摘要

PURPOSE: A filter for digital amplification embedding speaker is provided to miniaturize a digital device directly connecting to a digital amplification without a separate low pass filter and to lighten a weight.;CONSTITUTION: A filter for digital amplification embedding speaker comprises a frame (100), a vibration unit (110), an upper plate (120), a lower plate (130), a magnet (140), filler (150), an inductor (160) and a voice coil (170). The vibration unit generates sound wave being equipped in the frame. The upper plate is equipped in a lower part of the frame. The lower plate is equipped under the upper plate. The magnet is equipped between the upper plate and the lower plate. The filler is equipped in between the upper plate and the lower plate to penetrate the magnet. The inductor is winded on an outer circumference of the filler. The voice coil is combined to the vibration unit and performs piston movement by a magnetic field generated by an audio signal.;COPYRIGHT KIPO 2013