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1. (WO2017018242) SPEAKER MODULE AND ELECTRONIC DEVICE

Pub. No.:    WO/2017/018242    International Application No.:    PCT/JP2016/070944
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Sat Jul 16 01:59:59 CEST 2016
IPC: H04R 1/00
H02M 3/155
H04M 1/02
H04R 1/02
Applicants: MURATA MANUFACTURING CO., LTD.
株式会社村田製作所
Inventors: YAZAKI, Hirokazu
矢▲崎▼ 浩和
Title: SPEAKER MODULE AND ELECTRONIC DEVICE
Abstract:
A speaker module (20) equipped with: a DC/DC converter element (210) having a switching circuit element (211) and a choke coil (212) that is connected to the switching circuit element (211); and a speaker element (220) for converting an electrical signal generated using the output voltage from the DC/DC converter element (210) into audio. Furthermore, a magnetic substrate (21) that has the choke coil (212) housed therein and the switching circuit element (211) mounted thereon is positioned between the switching circuit element (211) and the speaker element (220).