Title:
SOUND REPRODUCTION SYSTEM AND TERMINATION PROCESSING CIRCUIT CONSTITUTING THE SAME
Document Type and Number:
Japanese Patent JP2018046396
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a sound reproduction system capable of reproducing excellent sound by suppressing increase of power consumption even when a speaker to be connected via a switching amplifier and a transformer is included.SOLUTION: A sound reproduction system includes: a switching amplifier for modulating a sound signal to be input by pulse width or pulse density and also outputting the signal by power amplification; a transformer for inputting an output signal from the switching amplifier to a primary winding wire side and outputting a sound signal whose voltage level is converted from a secondary winding wire side; a speaker for converting a sound signal to be output from the transformer into a sonic wave so as to perform sound reproduction; and a termination processing circuit for allowing signal potential of an output from the switching amplifier and an input of a transformer transformation circuit on a primary winding wire side to be processed by termination with ground potential.SELECTED DRAWING: Figure 1
Inventors:
SHIOZAKI HISANORI
YOSHIDA MAKOTO
YOSHIDA MAKOTO
Application Number:
JP2016179458A
Publication Date:
March 22, 2018
Filing Date:
September 14, 2016
Export Citation:
Assignee:
ONKYO KK
International Classes:
H04R3/00
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