JPH0457911U - - Google Patents
Info
- Publication number
- JPH0457911U JPH0457911U JP9905190U JP9905190U JPH0457911U JP H0457911 U JPH0457911 U JP H0457911U JP 9905190 U JP9905190 U JP 9905190U JP 9905190 U JP9905190 U JP 9905190U JP H0457911 U JPH0457911 U JP H0457911U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- voltage
- impedance
- power supply
- switch
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Amplifiers (AREA)
Description
第１図はこの考案に係る音響機器の制御装置の
実施例を示すブロツク図である。
主な符号の説明、１……リアーアンプ、２，５
，Ｓ……スピーカ、３，６……リレー、４……セ
ンターアンプ、７……電源回路、８……インピー
ダンス切換スイツチ、９……マイクロコンピユー
タ、１０……電源回路制御手段、１１……リレー
制御手段、Ｆ……フロントアンプ、１２……サラ
ウンドスイツチ、１３……状態検出手段。
FIG. 1 is a block diagram showing an embodiment of a control device for audio equipment according to this invention. Explanation of main symbols, 1... Rear amplifier, 2, 5
, S... Speaker, 3, 6... Relay, 4... Center amplifier, 7... Power supply circuit, 8... Impedance selection switch, 9... Microcomputer, 10... Power supply circuit control means, 11... Relay Control means, F...front amplifier, 12...surround switch, 13...state detection means.
Claims (1)
アンプ及び第２のアンプの動作状態を切り換える
第１のスイツチと、前記第１のアンプに接続する
スピーカのインピーダンスを選択する第２のスイ
ツチと、前記第２のスイツチの状態を検出する状
態検出手段と、前記第１のアンプ及び第２のアン
プに第１の電圧若しくは第２の電圧を選択的に印
加せしめる電源回路と、前記第１のアンプに接続
するスピーカのインピーダンスが第１のインピー
ダンスの時に第１の電圧を前記２つのアンプに印
加せしめ、前記第１のアンプに接続するスピーカ
のインピーダンスが第２のインピーダンスの時に
第１の電圧より高い第２の電圧を前記アンプに印
加せしめるように前記電源回路を制御する電源回
路制御手段とからなり、前記第１のスイツチで前
記２つのアンプを動作せしめるように指示した時
で、前記第２のスイツチの状態を検出する状態検
出手段が第１のアンプに接続するスピーカのイン
ピーダンスが第２のインピーダンスであることを
検出した時には、前記電源回路制御手段は前記状
態検出手段の検出結果に基づき前記２つのアンプ
に第１の電圧を印加するように前記電源回路を制
御せしめるように構成したことを特徴とする音響
機器の制御装置。 a first amplifier, a second amplifier, a first switch that switches the operating states of the first amplifier and the second amplifier, and a second switch that selects the impedance of a speaker connected to the first amplifier. a switch, a state detection means for detecting the state of the second switch, a power supply circuit for selectively applying a first voltage or a second voltage to the first amplifier and the second amplifier; A first voltage is applied to the two amplifiers when the impedance of a speaker connected to the first amplifier is a first impedance, and a first voltage is applied to the two amplifiers when the impedance of a speaker connected to the first amplifier is a second impedance. power supply circuit control means for controlling the power supply circuit so as to apply a second voltage higher than the voltage to the amplifier, and when the first switch instructs the two amplifiers to operate; When the state detection means for detecting the state of the second switch detects that the impedance of the speaker connected to the first amplifier is the second impedance, the power supply circuit control means uses the detection result of the state detection means to A control device for audio equipment, characterized in that the power supply circuit is controlled to apply a first voltage to the two amplifiers based on the power supply voltage.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9905190U JP2542482Y2 (en) | 1990-09-25 | 1990-09-25 | Control equipment for audio equipment |
| US07/748,837 US5165097A (en) | 1990-08-28 | 1991-08-23 | Controller for acoustic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9905190U JP2542482Y2 (en) | 1990-09-25 | 1990-09-25 | Control equipment for audio equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0457911U true JPH0457911U (en) | 1992-05-19 |
| JP2542482Y2 JP2542482Y2 (en) | 1997-07-30 |
Family
ID=31840696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9905190U Expired - Lifetime JP2542482Y2 (en) | 1990-08-28 | 1990-09-25 | Control equipment for audio equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2542482Y2 (en) |
-
1990
- 1990-09-25 JP JP9905190U patent/JP2542482Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2542482Y2 (en) | 1997-07-30 |