Title:
MUTE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2015198353
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To lengthen a mute time when a digital amplifier continuously detects an overcurrent.SOLUTION: A counter circuit 3, connected with an overcurrent detection terminal OUT, counts the number of voltage outputs from a digital amplifier 100. When the number of counts reaches a predetermined number, a potential outputs a high-level voltage. A variation circuit 4, connected with an output of a counter circuit 3, increases a current consumption between the floating ground FGND and a negative power supply -V, depending on whether a potential output by the counter 3 is a high-level voltage.
Inventors:
ASAO TSUYOSHI
NAKANISHI YOSHINORI
NAKANISHI YOSHINORI
Application Number:
JP2014075633A
Publication Date:
November 09, 2015
Filing Date:
April 01, 2014
Export Citation:
Assignee:
ONKYO KK
International Classes:
H03F1/52; H03F3/181
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