Title:
AUDIO APPARATUS
Document Type and Number:
Japanese Patent JP2013115685
Kind Code:
A
Abstract:
To provide an audio apparatus that keeps a speaker intact.
The audio apparatus includes: an audio input terminal 4; a PWM modulator 7 connected to the audio input terminal 4; an amplifier 8 connected to an output side of the PWM modulator 7; an LC filter 9 connected to an output side of the amplifier 8; and an audio output terminal 10 connected to an output side of the LC filter 9. The LC filter 9 is connected with a filter current detector 12 or a speaker current detector, and the filter current detector or speaker current detector is connected with a controller 13, which controls the amplifier 8.
Inventors:
KITAHIRA HISATAKE
Application Number:
JP2011261415A
Publication Date:
June 10, 2013
Filing Date:
November 30, 2011
Export Citation:
Assignee:
PANASONIC CORP
International Classes:
H03F3/217; H03F1/52; H04R3/00
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii
Daisuke Nagano
Kentaro Fujii
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