JPH054683B2 - - Google Patents
Info
- Publication number
- JPH054683B2 JPH054683B2 JP61304410A JP30441086A JPH054683B2 JP H054683 B2 JPH054683 B2 JP H054683B2 JP 61304410 A JP61304410 A JP 61304410A JP 30441086 A JP30441086 A JP 30441086A JP H054683 B2 JPH054683 B2 JP H054683B2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- power supply
- external power
- time width
- power source
- 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 21
- 238000010586 diagram Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Power Sources (AREA)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
本発明は、電池及び着脱自在のACアダプタ等
の外部電源によつて駆動可能な計算機に係り、そ
の電源制御に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a computer that can be driven by an external power source such as a battery and a detachable AC adapter, and relates to power control thereof.
(ロ) 従来の技術
特公昭54−37937号公報には、電池及びACアダ
プタ等の外部電源によつて駆動可能な計算機にお
いて、電源の切り忘れによる電池の無駄を防止す
るため、計算機不使用状態が所定時間継続した場
合、表示器への電源を供給を断つ制御手段を備え
た電源制御装置が開示されている。そして、この
制御装置では、外部電源による駆動時に、前記制
御手段の作動を不作動ならしめるために、外部電
源入力端子に、外部電源と電池との切換を行なう
ための切換接点の他、外部電源の出力端子の挿入
に応じて開閉するスイツチ接点を設け、この機械
的なスイツチ接点によつて、外部電源の接続の有
無を検知していた。(b) Prior art Japanese Patent Publication No. 54-37937 discloses that in a computer that can be driven by an external power source such as a battery or an AC adapter, in order to prevent the battery from being wasted due to forgetting to turn off the power, the computer is placed in a non-use state. A power supply control device is disclosed that includes a control means that cuts off the power supply to the display device if the power supply continues for a predetermined period of time. In this control device, in order to disable the operation of the control means when driven by an external power source, the external power input terminal is provided with a switching contact for switching between the external power source and the battery, as well as a switching contact for switching between the external power source and the battery. A switch contact was provided that opened and closed in response to the insertion of the output terminal, and this mechanical switch contact detected whether or not an external power source was connected.
(ハ) 発明が解決しようとする問題点
通常の外部電源入力端子は、外部電源と電池と
の切換接点しか有しておらず、このため、上記公
報に開示されている電源制御を実現するために
は、外部電源の接続の有無を検知するための機械
的接点を有する特別な外部電源入力端子を用意し
なければならなかつた。(c) Problems to be solved by the invention A normal external power input terminal has only a switching contact between an external power source and a battery, and therefore, it is difficult to realize the power control disclosed in the above publication. For this purpose, it was necessary to prepare a special external power input terminal with mechanical contacts to detect whether or not an external power supply was connected.
更に、従来技術では、機械的な接点を用いて外
部電源の接続の有無を検知していたので、信頼性
が低いという問題があつた。 Furthermore, in the prior art, mechanical contacts were used to detect the presence or absence of connection to an external power source, resulting in a problem of low reliability.
(ニ) 問題点を解決するための手段
本発明は、電池と外部電源との電源切換えを行
なう切換手段と、所定時間幅の計算機不使用状態
を検出して該所定時間幅の不使用状態が経過した
とき少なくとも表示器への電源の供給を断つ制御
手段と、前記切換手段を介して供給される電源電
圧にリツプル電圧が存在することを検出して検出
信号を出力するリツプル検出手段と、該リツプル
検出手段の検出信号に応じて、前記制御手段の前
記所定時間幅を、第１の時間幅から該第１の時間
幅より長い第２の時間幅に変更せしめる手段とを
設けて、上記問題点を解決するものである。(d) Means for Solving the Problems The present invention includes a switching means for switching between a battery and an external power source, and detecting a state of non-use of a computer for a predetermined period of time. control means for cutting off the supply of power to at least the display device when the time has elapsed; ripple detection means for detecting the presence of ripple voltage in the power supply voltage supplied via the switching means and outputting a detection signal; and means for changing the predetermined time width of the control means from a first time width to a second time width longer than the first time width in response to a detection signal of the ripple detection means. This solves the problem.
(ホ) 作用
本発明では、リツプル検出手段で、供給される
電源電圧にリツプル電圧が存在することを検出し
て、外部電源の接続の有無を検出するので、特別
な機械的接点を有さない通常の外部電源入力端子
を用いても、従来と同様の電源制御が実現でき
る。(e) Effect In the present invention, the ripple detection means detects the presence of ripple voltage in the supplied power supply voltage and detects whether or not the external power supply is connected, so there is no need for a special mechanical contact. Power control similar to the conventional one can be achieved even by using a normal external power input terminal.
(ヘ) 実施例
第１図は、本発明の実施例を示すブロツク図で
あり、入力部１からのキー入力信号は、メモリ２
が接続された演算部３に入力され、演算部３の出
力は表示部４にて表示される。演算部３、メモリ
２、表示部４へは、内蔵の電池５あるいはACア
ダプタ６による直流電源が、電源ライン７及び電
源スイツチ８を介して供給される。電源スイツチ
８は手動操作によりオンオフされるほか、タイマ
ー９の出力により自動的にオフとなり、又、タイ
マー９は電源供給を受けた後所望の設定時間Ｔが
経過すると出力を発生するが、リセツト端子Ｒに
信号が入力されれば内部状態がリセツトされる構
成なので、リセツト入力が途絶えてから設定時間
Ｔを経過したときに、はじめて出力を発生する。(F) Embodiment FIG. 1 is a block diagram showing an embodiment of the present invention, in which key input signals from the input section 1 are input to the memory 2.
is input to the arithmetic unit 3 connected to the arithmetic unit 3, and the output of the arithmetic unit 3 is displayed on the display unit 4. DC power from a built-in battery 5 or an AC adapter 6 is supplied to the calculation section 3, memory 2, and display section 4 via a power line 7 and a power switch 8. The power switch 8 is turned on and off by manual operation, and is also turned off automatically by the output of the timer 9. Also, the timer 9 generates an output when a desired set time T has elapsed after receiving power supply, but the reset terminal Since the internal state is reset when a signal is input to R, an output is generated only when a set time T has elapsed since the reset input was interrupted.
ACアダプタ６は、商用電源である50Hz又は60
Hzの交流電源電圧を、本システムに必要な所定の
直流電圧にする電源トランス、整流回路、平滑用
コンデンサを内蔵しており、出力端子はプラグチ
ツプ１０と絶縁されたスリーブ１１から成る。一
方、本体側の外部電源入力端子は、アースレべル
に接続された端子１２と、可動接片１３及び切換
接点１４より構成される一般的な入力端子であ
り、ACアダプタ６の出力端子が挿入されていな
いときは、切換接点１４が閉じるので、電源ライ
ン７には電池５からの直流電源電圧が供給され
る。ACアダプタ６の出力端子が挿入されたとき
には、スリーブ１１が端子１２と接続し、プラグ
チツプ１０が可動接片１３と接続して、切換接点
１４を開けるので、電源ライン７にはACアダプ
タ６からの直流電源が供給される。 The AC adapter 6 is a commercial power supply of 50Hz or 60Hz.
It contains a power transformer, a rectifier circuit, and a smoothing capacitor for converting the Hz AC power supply voltage to the specified DC voltage required for this system, and the output terminal consists of a plug chip 10 and an insulated sleeve 11. On the other hand, the external power input terminal on the main body side is a general input terminal consisting of a terminal 12 connected to the earth level, a movable contact piece 13, and a switching contact 14, and the output terminal of the AC adapter 6 is inserted. When not, the switching contact 14 is closed, and the DC power supply voltage from the battery 5 is supplied to the power supply line 7. When the output terminal of the AC adapter 6 is inserted, the sleeve 11 connects with the terminal 12, the plug tip 10 connects with the movable contact piece 13, and the switching contact 14 is opened. DC power is supplied.
電源ライン７には、リツプル電圧の存在を検出
して検出信号Ｂを出力するリツプル検出回路１５
が接続されており、この検出信号Ｂとキー入力信
号Ａとを入力するOR論理部１６の出力Ｇが、タ
イマー９のリセツト端子Ｒに入力されている。 The power supply line 7 includes a ripple detection circuit 15 that detects the presence of ripple voltage and outputs a detection signal B.
is connected, and the output G of the OR logic section 16 which inputs the detection signal B and the key input signal A is input to the reset terminal R of the timer 9.
リツプル検出回路１５は、具体的には第３図に
示すように、増幅回路１７とAC／DC変換回路１
８より成り、直流電源電圧にリツプル電圧が含ま
れていれば、継続的に「Ｈ」の信号を出力する構
成であり、ACアダプタ６によつて供給される直
流電源電圧は、商用電源の50／60Hzにより生ずる
リツプル電圧を必ず含み、電池５によつて供給さ
れる直流電源電圧は、リツプル電圧を含んでいな
い。 Specifically, as shown in FIG. 3, the ripple detection circuit 15 includes an amplifier circuit 17 and an AC/DC conversion circuit 1.
If ripple voltage is included in the DC power supply voltage, the DC power supply voltage supplied by the AC adapter 6 is 50% higher than the commercial power supply voltage. The DC power supply voltage supplied by the battery 5 does not contain any ripple voltage.
従つて、ACアダプタ６による駆動時には、リ
ツプル検出回路１５の検出信号Ｂにより、タイマ
ー９は常にリセツトされたままとなり、キー操作
が設定時間Ｔ以上為されなくても、自動的に電源
スイツチ８がオフすることはなく、電池５による
駆動時には、検出信号Ｂが出力されないので、キ
ー入力信号Ａが途絶えてから設定時間Ｔを経過し
てしまうと、タイマー９の出力が発生して、電源
スイツチ８が自動的にオフされる。 Therefore, when driven by the AC adapter 6, the timer 9 is always reset by the detection signal B of the ripple detection circuit 15, and the power switch 8 is automatically turned on even if no key operation is performed for the set time T or more. It never turns off, and the detection signal B is not output when powered by the battery 5. Therefore, if the set time T elapses after the key input signal A is interrupted, the output of the timer 9 is generated and the power switch 8 is turned off. is automatically turned off.
次に、第２図の他の実施例について説明する。 Next, another embodiment shown in FIG. 2 will be described.
第２図におけるタイマー１９は、設定時間Ｔが
T1とT2の２段階に変更可能であつて、制御端子
CONTに「Ｌ」の信号が入力されていれば、３
分程度の短かい設定時間T1で動作し、「Ｈ」の信
号が入力されているときは、約30分という長い設
定時間T2で動作するタイマーである。そして、
このタイマー１９のリツト端子Ｒには、キー入力
信号Ａが直接入力されている。 The timer 19 in FIG. 2 has a set time T.
It can be changed to two stages, T 1 and T 2 , and the control terminal
If a “L” signal is input to CONT, 3
This timer operates with a short set time T 1 of about minutes, and when an "H" signal is input, operates with a long set time T 2 of about 30 minutes. and,
The key input signal A is directly input to the reset terminal R of this timer 19.
従つて、電池５による駆動時には、検出信号Ｂ
が「Ｌ」になるので、短かい設定時間T1以上キ
ー操作が為されなければ、電源スイツチ８は自動
的にオフになるが、ACアダプタ６による駆動時
には、検出信号Ｂが「Ｈ」になるので、設定時間
T1以上キー操作が為されなくても、設定時間T2
以下であれば、電源スイツチ８はオフされない。
つまり、この実施例は、ACアダプタによる駆動
時には、タイマー１９を全く不動作にしてしまう
代わりに、その設定時間を長い時間に変更し、ほ
ぼ同様の効果を得るようにしたものである。 Therefore, when driven by the battery 5, the detection signal B
becomes "L", so if there is no key operation for a short set time T 1 or more, the power switch 8 will automatically turn off, but when it is driven by the AC adapter 6, the detection signal B will become "H". Therefore, the setting time
Even if no key operation is performed for T 1 or more, the set time T 2
If it is below, the power switch 8 will not be turned off.
That is, in this embodiment, when driven by the AC adapter, instead of completely disabling the timer 19, the set time is changed to a longer time to obtain almost the same effect.
(ト) 発明の効果
本発明に依れば、特別な機械的接点を有しない
一般的な外部電源入力端子を用いても、電池駆動
時には、電源の切り忘れによる無駄な電池の消耗
を防止し、且つ、外部電源駆動時には、長時間キ
ー操作を行なわない使用方法にも対処可能になる
という理想的な電源制御を実現でき、しかも、外
部電源の接続の有無を機械的接点を用いず電気的
に検知するので、信頼性も向上する。(G) Effects of the Invention According to the present invention, even if a general external power input terminal without special mechanical contacts is used, unnecessary battery consumption due to forgetting to turn off the power can be prevented during battery operation, In addition, when driven by an external power source, it is possible to achieve ideal power control that can be used without key operations for a long period of time, and it is also possible to check whether the external power source is connected electrically without using mechanical contacts. Detection improves reliability.
第１図は本発明の一実施例の構成を示すブロツ
ク図、第２図は本発明の他の実施例の構成を示す
ブロツク図、第３図はリツプル検出回路の具体例
を示す回路図である。
１……入力部、３……演算部、４……表示部、
５……電池、６……ACアダプタ、８……電源ス
イツチ、９，１９……タイマー、１５……リツプ
ル検出回路。
FIG. 1 is a block diagram showing the configuration of one embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of another embodiment of the invention, and FIG. 3 is a circuit diagram showing a specific example of a ripple detection circuit. be. 1...Input section, 3...Calculation section, 4...Display section,
5... Battery, 6... AC adapter, 8... Power switch, 9, 19... Timer, 15... Ripple detection circuit.
Claims (1)
タ等の外部電源によつても駆動される計算機にお
いて、前記電池と前記外部電源との電源切換えを
行う切換手段と、所定時間幅の計算機不使用状態
を検出して該所定時間幅の計算機不使用状態が経
過したとき少なくとも表示器への電源の供給を断
つ制御手段と、前記切換手段を介して供給される
電源電圧にリツプル電圧が存在することを検出し
て検出信号を出力するリツプル検出手段と、該リ
ツプル検出手段の検出信号に応じて、前記制御手
段の前記所定時間幅を、第１の時間幅から該第１
の時間幅より長い第２の時間幅に変更せしめる手
段を備えたことを特徴とする計算機の電源制御装
置。1. In a computer that has a built-in battery and is also driven by an external power source such as a detachable AC adapter, a switching means for switching the power source between the battery and the external power source, and a computer that is not in use for a predetermined period of time are provided. a control means for detecting and cutting off the supply of power to at least the display device when the computer is not in use for the predetermined period of time; and detecting the presence of ripple voltage in the power supply voltage supplied via the switching means. ripple detection means for outputting a detection signal, and the predetermined time width of the control means is changed from the first time width to the first time width according to the detection signal of the ripple detection means;
A power supply control device for a computer, comprising means for changing the time width to a second time width that is longer than the time width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61304410A JPS63156212A (en) | 1986-12-19 | 1986-12-19 | Power supply controller for computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61304410A JPS63156212A (en) | 1986-12-19 | 1986-12-19 | Power supply controller for computer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63156212A JPS63156212A (en) | 1988-06-29 |
| JPH054683B2 true JPH054683B2 (en) | 1993-01-20 |
Family
ID=17932669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61304410A Granted JPS63156212A (en) | 1986-12-19 | 1986-12-19 | Power supply controller for computer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63156212A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7259665B2 (en) * | 2004-10-27 | 2007-08-21 | International Business Machines Corporation | Battery backed service indicator aids for field maintenance |
| CN104101772B (en) * | 2013-04-08 | 2016-12-28 | 中国长城计算机深圳股份有限公司 | A kind of PG signal-testing apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437937A (en) * | 1977-08-31 | 1979-03-20 | Hitachi Heating Appliance Co Ltd | High frequency heater |
| JPS58179124A (en) * | 1982-04-12 | 1983-10-20 | 日本電信電話株式会社 | No-break power supply system |
| JPS61256420A (en) * | 1985-05-09 | 1986-11-14 | Panafacom Ltd | Automatic power supply cut-off control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62179636U (en) * | 1986-04-28 | 1987-11-14 |
-
1986
- 1986-12-19 JP JP61304410A patent/JPS63156212A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437937A (en) * | 1977-08-31 | 1979-03-20 | Hitachi Heating Appliance Co Ltd | High frequency heater |
| JPS58179124A (en) * | 1982-04-12 | 1983-10-20 | 日本電信電話株式会社 | No-break power supply system |
| JPS61256420A (en) * | 1985-05-09 | 1986-11-14 | Panafacom Ltd | Automatic power supply cut-off control system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63156212A (en) | 1988-06-29 |
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