JP2005065141A5 - - Google Patents
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- JP2005065141A5 JP2005065141A5 JP2003295865A JP2003295865A JP2005065141A5 JP 2005065141 A5 JP2005065141 A5 JP 2005065141A5 JP 2003295865 A JP2003295865 A JP 2003295865A JP 2003295865 A JP2003295865 A JP 2003295865A JP 2005065141 A5 JP2005065141 A5 JP 2005065141A5
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- gain
- subwoofer
- chip
- audio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Claims (3)
上記ＩＣチップの内部に、上記サブウーファ用利得可変増幅部の温度を検出する温度検出部と、
上記温度検出部により検出された検出温度と、上記ＩＣチップが破壊することを回避できる許容限度の温度として予め設定された基準温度とを判定する判定手段と、
上記判定手段から検出された検出温度が上記基準温度より高い場合に、上記サブウーファ用利得可変増幅部の利得を所定量低める利得制御手段とを
備えることを特徴とするマルチチャンネルオーディオ装置用オーディオアンプ。 A multi-channel audio device for audio amplifier in which a plurality of amplifying sections corresponding to the channel each subwoofer for variable gain amplification section plurality of audio signals including is configured in one IC chip of an audio signal,
Inside the IC chip, a temperature detection unit that detects the temperature of the variable gain unit for subwoofer,
A detection temperature detected by the temperature detecting unit, a determining means for the IC chip to determine a preset reference temperature as the temperature tolerance limits can be avoided to destroy,
If the detected temperature detected from above Symbol judging means is higher than the reference temperature, and a gain control means to lower a predetermined amount the gain of the subwoofer for gain variable amplifier
Multichannel audio device for audio amplifier, characterized in that it comprises.
上記ＩＣチップの内部に、上記サブウーファ用利得可変増幅部の温度を検出する温度検出部と、
上記温度検出部により検出された検出温度と、上記ＩＣチップの破壊を回避できる許容限度の温度よりも低い第１の基準温度及び当該第１の基準温度よりも高く上記ＩＣチップの破壊を回避できる許容限度の温度として予め設定された第２の基準温度とを判定する判定手段と、
を少なくとも有し、
上記判定手段から上記検出温度が上記第２の基準温度より高いという判定結果が得られたとき上記サブウーファ用利得可変増幅部の利得を下げ、上記検出温度が上記第１の基準温度より低くなったという判定結果が得られたとき該上記サブウーファ用利得可変増幅部の利得を低める前の利得に戻す利得制御手段とを
備えることを特徴とするマルチチャンネルオーディオ装置用オーディオアンプ。 A multi-channel audio device for audio amplifier in which a plurality of amplifying sections corresponding to the channel each subwoofer for variable gain amplification section plurality of audio signals including is configured in one IC chip of an audio signal,
Inside the IC chip, a temperature detection unit that detects the temperature of the variable gain unit for subwoofer,
Avoidance and detection temperature detected by the temperature detecting unit, the destruction of high rather the IC chip than the first reference temperature and the first reference temperature lower than the temperature tolerance limits can be avoided destruction of the IC chip a second reference temperature which is preset as a temperature tolerance limits that can and a determining means for determining,
Having at least
Lowering the gain of the subwoofer for variable gain amplifying unit when the detected temperature result determination that higher than the second reference temperature from the determining means is obtained, the detected temperature is lower than the first reference temperature Gain control means for returning the gain of the subwoofer gain variable amplifying unit to the gain before the gain is reduced when the determination result is obtained.
Multichannel audio device for audio amplifier, characterized in that it comprises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003295865A JP2005065141A (en) | 2003-08-20 | 2003-08-20 | Audio amplifier for multichannel audio apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003295865A JP2005065141A (en) | 2003-08-20 | 2003-08-20 | Audio amplifier for multichannel audio apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005065141A JP2005065141A (en) | 2005-03-10 |
| JP2005065141A5 true JP2005065141A5 (en) | 2006-09-28 |
Family
ID=34371947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003295865A Pending JP2005065141A (en) | 2003-08-20 | 2003-08-20 | Audio amplifier for multichannel audio apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2005065141A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4749229B2 (en) * | 2006-05-15 | 2011-08-17 | シャープ株式会社 | Audio output device, television receiver |
| EP3413463A1 (en) * | 2017-06-06 | 2018-12-12 | Vestel Elektronik Sanayi ve Ticaret A.S. | Electronic circuit and method of operation |
-
2003
- 2003-08-20 JP JP2003295865A patent/JP2005065141A/en active Pending
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