JPH0523000Y2 - - Google Patents
Info
- Publication number
- JPH0523000Y2 JPH0523000Y2 JP256886U JP256886U JPH0523000Y2 JP H0523000 Y2 JPH0523000 Y2 JP H0523000Y2 JP 256886 U JP256886 U JP 256886U JP 256886 U JP256886 U JP 256886U JP H0523000 Y2 JPH0523000 Y2 JP H0523000Y2
- Authority
- JP
- Japan
- Prior art keywords
- power
- circuit
- switch
- phone
- line
- 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 1
Landscapes
- Devices For Supply Of Signal Current (AREA)
- Mobile Radio Communication Systems (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は車載電話機、特に電源ON／OFF
（開閉）回路に関するものである。[Detailed explanation of the invention] (Industrial application field) This invention is used for in-vehicle telephones, especially power ON/OFF
(opening/closing) circuits.
（従来の技術）
車載電話機は電話機と無線機により構成されて
いる。そして一般に、電話機は自動車室内に、無
線機は前記自動車のトランク内に設置される。ま
た、車載電話機の電源ON／OFFスイツチは、電
話機側に具備されており、このスイツチをON／
OFFすることにより無線機内の電源回路を制御
し、電源を立ち上がらせるようにしている。(Prior Art) An in-vehicle telephone is composed of a telephone and a radio. Generally, the telephone is installed inside the car, and the radio is installed in the trunk of the car. In addition, the power ON/OFF switch of the in-vehicle phone is provided on the phone side, and this switch can be turned ON/OFF.
By turning it off, the power circuit inside the radio is controlled and the power is turned on.
第２図は従来の車載電話機の一構成例を示すブ
ロツク図であり、１は無線機、２は無線機１と電
話機３をつなぐ接続線で、電源線、データ線、音
声信号線等が含まれる。その中、２ａは接続線２
のなかに含まれる電源ON／OFFの制御線、２ｂ
は電源線を示す。４は電話機３側に設けた電源
ON／OFFのスイツチ回路、５は電源スイツチ、
６は自動車のバツテリ、８は電源ラインを開閉す
る電源ON／OFF回路、７は電源ON／OFF回路
８を制御する電源ON／OFF制御回路である。 Fig. 2 is a block diagram showing an example of the configuration of a conventional in-vehicle telephone. 1 is a radio device, 2 is a connection line connecting the radio device 1 and the telephone 3, and includes a power line, a data line, an audio signal line, etc. It can be done. Among them, 2a is the connection line 2
Power ON/OFF control line included in 2b
indicates the power line. 4 is the power supply installed on the phone 3 side
ON/OFF switch circuit, 5 is power switch,
Reference numeral 6 denotes a battery of the automobile, 8 a power ON/OFF circuit for opening and closing a power line, and 7 a power ON/OFF control circuit for controlling the power ON/OFF circuit 8.
次に、その動作について述べる。 Next, its operation will be described.
車載電話機の電源を入れる場合、先ず電話機３
の電源スイツチ５を（ON）操作すると、電源
ON／OFF制御線２ａが電話機３内でGNDに接
続され、電源を立ち上げるという信号（この場合
にはGNDレベル）が無線機１内の電源ON／
OFF制御回路７に供給され、電源ON／OFF回路
８を制御し、電源ラインが開→閉になることによ
り無線機１内各回路及び電話機３に電源電圧が供
給される構成であつた。 When turning on the car phone, first turn on phone 3.
When you operate power switch 5 (ON), the power will turn on.
The ON/OFF control line 2a is connected to GND in the telephone 3, and a signal to turn on the power (GND level in this case) is sent to the radio 1 to turn on the power.
The voltage is supplied to the OFF control circuit 7, controls the power ON/OFF circuit 8, and the power supply voltage is supplied to each circuit in the radio 1 and the telephone 3 by switching the power line from open to close.
（考案が解決しようとする問題点）
しかしながら、上記構成の回路では、車載電話
機の電源を立ち上げるために、電話機３の無線機
１をつなぐ接続線２のなかに電源ON／OFFを制
御するための線２ａが必らず必要という問題があ
つた。(Problem to be solved by the invention) However, in the circuit with the above configuration, in order to start up the power of the in-vehicle phone, there is a power ON/OFF control in the connection line 2 that connects the radio 1 of the phone 3. There was a problem that the line 2a was always necessary.
したがつて、この考案は前記従来技術が持つて
いた問題である電源ON／OFFの制御を行なうた
めの専用線を必要としない電源ON／OFF回路を
提供するものである。 Therefore, this invention provides a power ON/OFF circuit that does not require a dedicated line for controlling power ON/OFF, which is the problem with the prior art.
（問題点を解決するための手段）
この考案は前記問題点を解決するため車載電話
機において、電話機と無線機をつなぐ接続線のな
かから電源を立ち上げるための電源ON／OFF制
御線をなくし、供給電圧を電話機内部各回路に接
続／切断する電源スイツチとその操作により電話
機に流れる電流を検知して無線機内の電源ON／
OFF制御回路に信号を供給する電流検知回路を
設けるようにしたものである。(Means for solving the problem) In order to solve the above problem, this invention eliminates the power ON/OFF control line for starting the power from the connection line connecting the phone and the radio in the in-vehicle phone. The power switch connects/disconnects the supply voltage to each circuit inside the phone, and its operation detects the current flowing through the phone and turns on/off the power inside the radio.
A current detection circuit is provided to supply a signal to the OFF control circuit.
（作用）
このようにすると、電話機内の電源スイツチ５
を閉じると電話機各回路に電流が流れる。この電
流が流れ始めたことを電流検知回路が検知し、無
線機内の電源ON／OFF制御回路を動作し、電源
ON／OFF回路により電源ラインを開から閉にし
て各回路に電圧を供給することができる。(Function) If you do this, the power switch 5 inside the phone
When closed, current flows through each circuit of the phone. The current detection circuit detects that this current has started flowing, operates the power ON/OFF control circuit inside the radio, and
The ON/OFF circuit allows the power line to be opened and closed to supply voltage to each circuit.
（実施例）
第１図は本考案電源ON／OFF回路の一実施例
を示すブロツク図で第２図と同じ番号のものは同
じ要素とする。図において、９は電話機３に流れ
る電流を検知し、電源ON／OFF制御回路７に信
号を供給する電流検知回路で、Ｒは抵抗、Ａは差
動増幅器を示す。(Embodiment) FIG. 1 is a block diagram showing an embodiment of the power ON/OFF circuit of the present invention, and the same numbers as in FIG. 2 are the same elements. In the figure, 9 is a current detection circuit that detects the current flowing through the telephone 3 and supplies a signal to the power ON/OFF control circuit 7, R is a resistor, and A is a differential amplifier.
次に、上記のように構成された回路の動作を説
明する。 Next, the operation of the circuit configured as described above will be explained.
自動車のバツテリ６から供給された電源電圧は
電源線２ｂを通じて電話機３の入力端まで到達し
ている。電話機３内の電源スイツチ５は、スイツ
チ回路４を介してこの供給電圧を内部各回路に接
続／切断する機能を有する。ここで、この電源ス
イツチ５を閉じると電話機３内の各回路に電流が
流れ出す。 The power supply voltage supplied from the car's battery 6 reaches the input end of the telephone 3 through the power line 2b. The power switch 5 in the telephone 3 has the function of connecting/disconnecting this supply voltage to each internal circuit via the switch circuit 4. When the power switch 5 is closed, current begins to flow into each circuit within the telephone 3.
この電流が流れ始めたことを無線機１内にある
電流検知回路９が検知し、電源スイツチ５が閉じ
られたと判断し、電源ON／OFF制御回路７に信
号を送出する。この信号により電源ON／OFF回
路８は電源ラインを開→閉にすることにより各回
路に電圧を供給する。 A current detection circuit 9 in the radio 1 detects that this current has started flowing, determines that the power switch 5 is closed, and sends a signal to the power ON/OFF control circuit 7. In response to this signal, the power supply ON/OFF circuit 8 supplies voltage to each circuit by switching the power supply line from open to close.
（考案の効果）
以上詳細に説明したように、本考案によれば車
載電話機の電話機と無線機の接続線の中、車載電
話機の電源ON／OFF（開閉）回路のための接続
線を１本減らすことができる。したがつて小型
化、簡素化の方向にある車載電話機において、接
続線を従来ある８芯モジユラーコネクタ及びカー
ルコードで結ぶことが可能になる等の効果があ
る。(Effects of the invention) As explained in detail above, according to the invention, one connection wire for the power ON/OFF (open/close) circuit of the in-vehicle phone is selected among the connection lines between the in-vehicle phone and the radio. can be reduced. Therefore, in car-mounted telephones that are trending towards miniaturization and simplification, there are effects such as the ability to connect connection lines with conventional 8-core modular connectors and curl cords.
第１図は本考案車載電話機の電源ON／OFF回
路の一実施例を示すブロツク図、第２図は同じく
従来の電源ON／OFF回路のブロツク図である。
１……無線機、２……接続線、２ａ……電源
ON／OFF制御線、２ｂ……電源線、３……電話
機、４……電源ON／OFFスイツチ回路、５……
電源スイツチ、６……自動車のバツテリ、７……
電源ON／OFF制御回路、８……電源ON／OFF
回路、９……電流検知回路。
FIG. 1 is a block diagram showing an embodiment of the power ON/OFF circuit of the in-vehicle telephone of the present invention, and FIG. 2 is a block diagram of a conventional power ON/OFF circuit. 1... Radio, 2... Connection line, 2a... Power supply
ON/OFF control line, 2b...Power line, 3...Telephone, 4...Power ON/OFF switch circuit, 5...
Power switch, 6... Car battery, 7...
Power ON/OFF control circuit, 8...Power ON/OFF
Circuit, 9... Current detection circuit.
Claims (1)
該電話機側に電源スイツチを設けて構成される車
載電話機の電源ON／OFF回路において、 前記無線機に設けたバツテリ側に接続された前
記接続線内の電源線を、前記電話機側に設けた電
源スイツチのスイツチ回路に接続し、該スイツチ
回路をONとして電話機を動作させたときに流れ
る電流を検知する前記電源線に直列に接続された
電流検知回路と、 該回路の検知出力により動作する電源ON／
OFF制御回路と、 該回路の出力により動作し、無線機への電源を
ONとする電源ON／OFF回路とを無線機に設け
たことを特徴とする車載電話機の電源ON／OFF
回路。[Scope of claim for utility model registration] Connecting a wireless device and a telephone via a connection line,
In a power ON/OFF circuit for an in-vehicle phone configured by providing a power switch on the phone side, a power line in the connection line connected to a battery side provided on the radio device is connected to a power source provided on the phone side. a current detection circuit connected in series to the power supply line that connects to the switch circuit of the switch and detects the current that flows when the switch circuit is turned on and the telephone is operated; and a power supply that is operated by the detection output of the circuit. /
It is operated by the OFF control circuit and the output of the circuit, and supplies power to the radio.
Power ON/OFF of an in-vehicle phone characterized by having a power ON/OFF circuit for turning ON the wireless device
circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP256886U JPH0523000Y2 (en) | 1986-01-14 | 1986-01-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP256886U JPH0523000Y2 (en) | 1986-01-14 | 1986-01-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62117867U JPS62117867U (en) | 1987-07-27 |
| JPH0523000Y2 true JPH0523000Y2 (en) | 1993-06-14 |
Family
ID=30781528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP256886U Expired - Lifetime JPH0523000Y2 (en) | 1986-01-14 | 1986-01-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0523000Y2 (en) |
-
1986
- 1986-01-14 JP JP256886U patent/JPH0523000Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62117867U (en) | 1987-07-27 |
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