JPH0766772A - Portable radio equipment and power supply device - Google Patents
Portable radio equipment and power supply deviceInfo
- Publication number
- JPH0766772A JPH0766772A JP5227807A JP22780793A JPH0766772A JP H0766772 A JPH0766772 A JP H0766772A JP 5227807 A JP5227807 A JP 5227807A JP 22780793 A JP22780793 A JP 22780793A JP H0766772 A JPH0766772 A JP H0766772A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- voltage
- battery
- wireless device
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Mobile Radio Communication Systems (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Transceivers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、充電可能な二次電池が
内蔵された携帯電話機などの無線機と、外部電源によっ
て内蔵電池を充電するとともに無線機動作を行わせる電
源装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless device such as a mobile phone having a rechargeable secondary battery built-in, and a power supply device for charging the built-in battery by an external power source and operating the wireless device. .
【０００２】[0002]
【従来の技術】二次電池が内蔵された携帯用無線機は、
外部から内蔵電池を充電できる構造を有するとともに、
携帯しない時、内蔵電池の消耗を抑えるために外部電源
によって動作するように構成されている。又、このよう
な携帯用無線機には付属品として外部電源アダプタや充
電器が用意されているのが一般的である。2. Description of the Related Art A portable radio having a built-in secondary battery is
In addition to having a structure that can charge the internal battery from the outside,
When not carried, it is configured to be operated by an external power source in order to suppress consumption of the built-in battery. In addition, an external power adapter or a charger is generally prepared as an accessory for such a portable wireless device.
【０００３】外部電源アダプタ（装置）や充電器に対応
して携帯用無線機の電源切替回路にはいろいろあるが代
表的な２つの例を説明する。図２は従来の外部電源装置
と無線機の電源切替回路の例を示す要部ブロック図であ
る。この例はフローティング形式の例である。図におい
て、１は無線機、２は負荷となる無線機回路、３は内蔵
電池、４は外部電源装置５を接続するコネクタ、１７は
放電用ダイオード、１８は充電電流設定用抵抗である。
この例は、外部電源装置５を接続したとき内蔵電池３を
切り離さずに電圧を印加して充電するように構成されて
いる。図３は従来の外部電源装置５，充電器２０，及び
無線機の電源切替回路の他の例を示す要部ブロック図で
ある。この例は切替方式の例である。図において、１〜
５は図２と同じである。１９は切替スイッチ、１４は動
作電源用端子、１５はアース端子、１６は充電用端子で
ある。この例では、外部電源装置５をコネクタ４に差し
込んだとき切替スイッチ１９が機械的に連動して内蔵電
池３を切り離し外部電源装置５側に切替わり、抜き取っ
たとき同様に機械的に連動して内蔵電池３側に切り替わ
るように構成されている。内蔵電池３の充電は充電器２
０から充電用端子１６を介して行われる。Although there are various power supply switching circuits for portable radios corresponding to external power supply adapters (devices) and chargers, two typical examples will be described. FIG. 2 is a block diagram of a main part showing an example of a conventional external power supply device and a power supply switching circuit of a wireless device. This example is a floating type. In the figure, 1 is a radio device, 2 is a radio device circuit as a load, 3 is a built-in battery, 4 is a connector for connecting the external power supply device 5, 17 is a discharging diode, and 18 is a charging current setting resistor.
In this example, when the external power supply device 5 is connected, the built-in battery 3 is not disconnected and a voltage is applied to charge the battery. FIG. 3 is a main part block diagram showing another example of the conventional external power supply device 5, charger 20, and power supply switching circuit of a wireless device. This example is an example of the switching method. In the figure,
5 is the same as in FIG. Reference numeral 19 is a changeover switch, 14 is an operating power supply terminal, 15 is a ground terminal, and 16 is a charging terminal. In this example, when the external power supply device 5 is inserted into the connector 4, the changeover switch 19 mechanically interlocks to disconnect the built-in battery 3 and switches to the external power supply device 5 side. It is configured to switch to the built-in battery 3 side. Charge the built-in battery 3 with the charger 2.
It is carried out from 0 through the charging terminal 16.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上述の
装置及び回路においては、図２のフローティング形式の
場合、ダイオード１７による電圧降下が大きいため低電
圧電池が内蔵された無線機には適用できないという欠点
がある。また、図３の切替方式の場合、外部電源装置５
が接続されたままの状態で、その外部電源装置５の出力
電圧が故障のため断となったとき無線機回路２の動作が
停止して通話不能となる欠点がある。However, in the above-mentioned device and circuit, in the case of the floating type shown in FIG. 2, since the voltage drop due to the diode 17 is large, it cannot be applied to a radio device having a built-in low voltage battery. There is. Further, in the case of the switching method of FIG. 3, the external power supply device 5
When the output voltage of the external power supply device 5 is disconnected due to a failure in the state where the circuit is still connected, the operation of the wireless device circuit 2 stops and there is a drawback that a call becomes impossible.
【０００５】本発明の目的は、図３に示した切替方式を
改良し、外部電源装置からの動作電圧供給が断となって
も無線機の動作が断とならない携帯無線機と電源装置を
提供することにある。An object of the present invention is to improve the switching system shown in FIG. 3 and provide a portable radio device and a power supply device in which the operation of the radio device is not interrupted even if the operating voltage supply from the external power supply device is interrupted. To do.
【０００６】[0006]
【課題を解決するための手段】本発明の携帯無線機と電
源装置は、二次電池を内蔵する携帯用無線機を外部電源
によって動作させるために、電源から前記無線機の動作
電圧を生成して出力する電源回路を備えた電源装置を前
記無線機のコネクタに接続することにより該無線機の電
池に直列に設けられたスイッチが“開”となって前記電
源回路からの動作電圧が無線機回路に供給されて動作状
態となる携帯用無線機と電源装置において、前記電源装
置は、前記電源回路の出力電圧が印加され該印加電圧が
正常のとき２つの出力端子が“開”となり該印加電圧が
零電位になったとき２つの出力端子が“閉”となる制御
回路と、該制御回路の２つの出力端子が接続され前記電
源を共通電源として前記無線機の電池を充電するための
充電用電流を出力するとともに前記２つの出力端子が
“閉”となったとき充電用電流を停止する充電用電源回
路とを備え、前記携帯用無線機は、前記スイッチに並列
に接続されたＦＥＴと、前記電源回路からの電圧が印加
され該印加電圧が正常のとき前記ＦＥＴを“開”とし、
印加電圧が零電位のとき該ＦＥＴを“閉”として前記電
池を前記無線機回路に接続する制御用のトランジスタと
を備えたことを特徴とするものである。A portable wireless device and a power supply device of the present invention generate an operating voltage of the wireless device from a power source in order to operate a portable wireless device having a built-in secondary battery by an external power source. By connecting a power supply device equipped with a power supply circuit for outputting to the connector of the radio device, a switch provided in series with the battery of the radio device is opened, and the operating voltage from the power supply circuit is changed to the radio device. In a portable wireless device and a power supply device that are supplied to a circuit and are in an operating state, the power supply device applies two output terminals to "open" when the output voltage of the power supply circuit is applied and the applied voltage is normal. A control circuit in which two output terminals are "closed" when the voltage becomes zero potential, and a charging circuit for connecting the two output terminals of the control circuit to the power source as a common power source to charge the battery of the wireless device Output current for And a charging power supply circuit that stops the charging current when the two output terminals are “closed”, and the portable wireless device includes an FET connected in parallel to the switch, and the power supply circuit. Is applied and the FET is "opened" when the applied voltage is normal,
And a control transistor for connecting the battery to the radio circuit by closing the FET when the applied voltage is zero potential.
【０００７】[0007]
【実施例】図１は本発明の実施例を示すブロック図であ
る。図において、１〜４は図２，図３の場合と同じであ
る。６は切替スイッチ、７は切替スイッチ６に並列に接
続されて内蔵電池３をオン／オフするＦＥＴ（電界効果
トランジスタ）、８はＦＥＴ７のスイッチ動作を制御す
るトランジスタ、９は逆流防止用ダイオード、１４は動
作電源用端子、１５はアース端子、１６は充電用端子で
ある。１０は電源装置であり、動作電圧用電源回路１
１，充電用電源回路１２，制御回路１３によって構成さ
れている。電源装置２０を無線機１のコネクタ４に接続
すると機械的に連動して切替スイッチ６が“開”となり
内蔵電池３がオフ（無負荷）となる。このとき、電源回
路１１からの印加電圧によって、トランジスタ８が作動
し、ＦＥＴ７のソース（Ｓ）とドレイン（Ｄ）間が断と
なると同時に、電源回路１１の出力電圧はダイオード９
を介して無線機回路（負荷）２に供給される。一方、充
電用電源回路１２の出力は、ＦＥＴ７が断であるため、
電池３のみに接続され充電状態となる。電源装置１０
は、交流１００Ｖの商用電源または自動車などの直流１
２Ｖを電源（ソース）Ｓとし、Ｓが交流１００Ｖのとき
は電源回路１１は整流，平滑回路で構成され、Ｓが直流
１２Ｖのときは電源回路１１はＤＣ／ＤＣコンバータで
構成される。図示の例は、例えばＳが直流１２Ｖの場合
を示している。そして、この電源回路１１は内部インピ
ーダンスが充分に小さい定電圧電源回路であり、充電用
電源回路１２は内部インピーダンスが十分に大きい定電
流電源回路である。充電用電源回路１２は、電源回路１
１の入力電源Ｓを共通の入力とし、電源回路１１の出力
直流電圧が制御回路１３を介して入力され、電源回路１
１の出力電圧が正常な電位があるとき、制御回路１３の
トランジスタＱ1 のエミッタ，コレクタ間が“断”とな
り、充電用電源回路１２のダイオードＤの両端に電圧が
発生してトランジスタＱ2 が動作し、抵抗Ｒ1 にはダイ
オードＤの両端の電位差に等しくなるような電流が流れ
て、前述のように無線機１の電池３に充電電流を供給す
る。FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, 1 to 4 are the same as those in FIGS. 6 is a changeover switch, 7 is a FET (field effect transistor) connected in parallel to the changeover switch 6 to turn on / off the built-in battery 3, 8 is a transistor for controlling the switching operation of the FET 7, 9 is a backflow prevention diode, 14 Is an operating power supply terminal, 15 is a ground terminal, and 16 is a charging terminal. Reference numeral 10 denotes a power supply device, which is an operating voltage power supply circuit 1.
1, a charging power supply circuit 12, and a control circuit 13. When the power supply device 20 is connected to the connector 4 of the wireless device 1, the changeover switch 6 is mechanically interlocked, and the built-in battery 3 is turned off (no load). At this time, the transistor 8 is activated by the voltage applied from the power supply circuit 11 to disconnect the source (S) and the drain (D) of the FET 7, and at the same time, the output voltage of the power supply circuit 11 is the diode 9
Is supplied to the wireless device circuit (load) 2 via. On the other hand, the output of the charging power supply circuit 12 is the disconnection of the FET 7,
It is connected to only the battery 3 and is in a charging state. Power supply 10
Is a commercial power supply of AC 100V or DC 1 of an automobile, etc.
The power source (source) S is 2V, the power source circuit 11 is composed of a rectifying and smoothing circuit when S is 100V AC, and the power source circuit 11 is composed of a DC / DC converter when S is DC 12V. The illustrated example shows the case where S is DC 12V, for example. The power supply circuit 11 is a constant voltage power supply circuit having a sufficiently small internal impedance, and the charging power supply circuit 12 is a constant current power supply circuit having a sufficiently large internal impedance. The power supply circuit 12 for charging is the power supply circuit 1
1 is used as a common input, and the output DC voltage of the power supply circuit 11 is input via the control circuit 13.
When the output voltage of 1 has a normal potential, the emitter and collector of the transistor Q 1 of the control circuit 13 are “disconnected”, a voltage is generated across the diode D of the charging power supply circuit 12, and the transistor Q 2 becomes The resistor R 1 operates and a current equal to the potential difference between both ends of the diode D flows, and the charging current is supplied to the battery 3 of the wireless device 1 as described above.
【０００８】無線機１に動作電圧を供給する電源回路１
１が何らかの原因によって出力電圧が零になったとき、
制御回路１３のトランジスタＱ1 は導通状態となり、ダ
イオードＤの両端が短絡されてトランジスタＱ2 が
“断”となるため充電電流の供給が停止される。それと
同時に、無線機１のトランジスタ８のエミッタ，コレク
タ間が“断”となり、ＦＥＴ７のソース（Ｓ），ドレイ
ン（Ｄ）間は“接”、すなわち導通状態となる。その結
果内蔵電池３の電圧がＦＥＴ７を通じて無線機回路２に
印加されるので無線機の通話が断となることなく継続さ
れる。ダイオード９はこの時の逆流防止の機能を果た
す。ＦＥＴ７は電位差のみで動作するため、トランジス
タ８に消費される電力は非常に小さく、ｉc ＝５０〜１
００μＡ程度である。また、ＦＥＴ７は動作時の導通抵
抗を０．１Ω位にすることは可能のため、１Ａ〜３Ａ位
の負荷電流に耐えられ、携帯電話機の電源制御を実現す
ることができる。ＦＥＴ７と機械的切替スイッチ６とを
併用しているのは、機械的スイッチの導通抵抗は０．０
２Ω位であり、電圧降下が少ないという長所を活かすた
めである。Power supply circuit 1 for supplying operating voltage to the radio 1
When the output voltage becomes zero for some reason,
The transistor Q 1 of the control circuit 13 becomes conductive, the both ends of the diode D are short-circuited, and the transistor Q 2 is turned off, so that the supply of the charging current is stopped. At the same time, the emitter and collector of the transistor 8 of the wireless device 1 are "disconnected", and the source (S) and drain (D) of the FET 7 are "contacted", that is, conductive. As a result, the voltage of the built-in battery 3 is applied to the wireless device circuit 2 through the FET 7, so that the wireless device communication continues without interruption. The diode 9 functions to prevent backflow at this time. Since the FET 7 operates only by the potential difference, the power consumed by the transistor 8 is very small and i c = 50 to 1
It is about 00 μA. Further, since the FET 7 can have a conduction resistance of about 0.1Ω during operation, it can withstand a load current of about 1A to 3A and can realize power supply control of a mobile phone. The FET 7 and the mechanical changeover switch 6 are used together because the conduction resistance of the mechanical switch is 0.0.
This is because it is about 2Ω and the advantage that the voltage drop is small is utilized.
【０００９】[0009]
【発明の効果】本発明を実施することにより、次の効果
がある。 （１） 無線機動作用外部電源が故障して出力電圧が零
になっても負荷への電圧供給が断とならない。 （２） 電池電圧の降下が最小限に抑えられる（０．１
Ｖ以下）ため、低電圧使用の無線機には大きな効果があ
る。 （３） 外部電源の出力をオン／オフすることにより、
充電状態と電池駆動動作の切替えが容易に行える。 （４） ＦＥＴと機械スイッチとを併用することによ
り、電圧降下を更に小さくできる。また、オン／オフの
信頼性も向上することができる。The following effects can be obtained by implementing the present invention. (1) The voltage supply to the load is not interrupted even if the output voltage becomes zero due to a failure of the external power supply for operating the radio. (2) Battery voltage drop is minimized (0.1
Therefore, it has a great effect on a radio device using a low voltage. (3) By turning on / off the output of the external power supply,
The charge state and battery-powered operation can be easily switched. (4) The voltage drop can be further reduced by using the FET and the mechanical switch together. Also, the reliability of on / off can be improved.
【図１】本発明の実施例を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of the present invention.
【図２】従来の回路例図である。FIG. 2 is a diagram of a conventional circuit example.
【図３】従来の回路例図である。FIG. 3 is a diagram illustrating a conventional circuit example.
１ 無線機 ２ 無線機回路 ３ 内蔵電池 ４ コネクタ ５ 外部電源装置 ６ 切替スイッチ ７ ＦＥＴ ８ トランジスタ ９ ダイオード １０ 電源装置 １１ 電源回路 １２ 充電用電源回路 １３ 制御回路 １４ 動作電源用端子 １５ アース端子 １６ 充電用端子 １７ ダイオード １８ 抵抗 １９ スイッチ ２０ 充電器 1 Radio Equipment 2 Radio Equipment Circuit 3 Built-in Battery 4 Connector 5 External Power Supply Device 6 Changeover Switch 7 FET 8 Transistor 9 Diode 10 Power Supply Device 11 Power Supply Circuit 12 Charging Power Supply Circuit 13 Control Circuit 14 Operating Power Supply Terminal 15 Ground Terminal 16 Charging Terminal 17 Diode 18 Resistance 19 Switch 20 Charger
Claims (1)
電源によって動作させるために、電源から前記無線機の
動作電圧を生成して出力する電源回路を備えた電源装置
を前記無線機のコネクタに接続することにより該無線機
の電池に直列に設けられたスイッチが“開”となって前
記電源回路からの動作電圧が無線機回路に供給されて動
作状態となる携帯用無線機と電源装置において、 前記電源装置は、前記電源回路の出力電圧が印加され該
印加電圧が正常のとき２つの出力端子が“開”となり該
印加電圧が零電位になったとき２つの出力端子が“閉”
となる制御回路と、該制御回路の２つの出力端子が接続
され前記電源を共通電源として前記無線機の電池を充電
するための充電用電流を出力するとともに前記２つの出
力端子が“閉”となったとき充電用電流を停止する充電
用電源回路とを備え、 前記携帯用無線機は、前記スイッチに並列に接続された
ＦＥＴと、前記電源回路からの電圧が印加され該印加電
圧が正常のとき前記ＦＥＴを“開”とし、印加電圧が零
電位のとき該ＦＥＴを“閉”として前記電池を前記無線
機回路に接続する制御用のトランジスタとを備えたこと
を特徴とする携帯用無線機と電源装置。1. A power supply device having a power supply circuit for generating and outputting an operating voltage of the wireless device from a power source for operating a portable wireless device having a built-in secondary battery by an external power source. By connecting to the connector, the switch provided in series with the battery of the wireless device is "opened" and the operating voltage from the power supply circuit is supplied to the wireless device circuit to be in the operating state. In the device, the output voltage of the power supply circuit is applied and the two output terminals are “open” when the applied voltage is normal, and the two output terminals are “closed” when the applied voltage is zero potential. ”
And a control circuit to which two output terminals of the control circuit are connected are connected to each other to output a charging current for charging the battery of the radio device with the power source as a common power source and the two output terminals are “closed”. The portable radio has a FET connected in parallel with the switch and a voltage from the power supply circuit is applied so that the applied voltage is normal. And a control transistor for connecting the battery to the radio circuit when the applied voltage is zero and the FET is "closed" when the applied voltage is zero potential. And power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5227807A JPH0766772A (en) | 1993-08-23 | 1993-08-23 | Portable radio equipment and power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5227807A JPH0766772A (en) | 1993-08-23 | 1993-08-23 | Portable radio equipment and power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0766772A true JPH0766772A (en) | 1995-03-10 |
Family
ID=16866695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5227807A Pending JPH0766772A (en) | 1993-08-23 | 1993-08-23 | Portable radio equipment and power supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0766772A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016080890A (en) * | 2014-10-17 | 2016-05-16 | 株式会社リコー | Electromechanical system |
| CN106740218A (en) * | 2016-12-31 | 2017-05-31 | 深圳市沃特玛电池有限公司 | Charging system and charging method |
| CN109474061A (en) * | 2018-12-21 | 2019-03-15 | 中国航发控制***研究所 | Low pressure drop power-supplying circuit |
-
1993
- 1993-08-23 JP JP5227807A patent/JPH0766772A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016080890A (en) * | 2014-10-17 | 2016-05-16 | 株式会社リコー | Electromechanical system |
| CN106740218A (en) * | 2016-12-31 | 2017-05-31 | 深圳市沃特玛电池有限公司 | Charging system and charging method |
| CN109474061A (en) * | 2018-12-21 | 2019-03-15 | 中国航发控制***研究所 | Low pressure drop power-supplying circuit |
| CN109474061B (en) * | 2018-12-21 | 2021-09-03 | 中国航发控制***研究所 | Low-voltage-drop power supply circuit |
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