JPH06250977A - Power switching system - Google Patents
Power switching systemInfo
- Publication number
- JPH06250977A JPH06250977A JP5033874A JP3387493A JPH06250977A JP H06250977 A JPH06250977 A JP H06250977A JP 5033874 A JP5033874 A JP 5033874A JP 3387493 A JP3387493 A JP 3387493A JP H06250977 A JPH06250977 A JP H06250977A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- current consumption
- consumption mode
- large current
- battery
- 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.)
- Withdrawn
Links
- 230000010365 information processing Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 101000908580 Homo sapiens Spliceosome RNA helicase DDX39B Proteins 0.000 abstract description 10
- 102100021298 b(0,+)-type amino acid transporter 1 Human genes 0.000 abstract description 10
- 238000012544 monitoring process Methods 0.000 description 15
- 101150012898 id4 gene Proteins 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
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- Power Sources (AREA)
- Calculators And Similar Devices (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は電源切換え方式に関し、
特に電池から電源供給される携帯型情報処理端末装置に
おいて大電流消費モード時と通常電流消費モード時に電
池電圧を切り換える電源切換え方式に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply switching system,
In particular, the present invention relates to a power supply switching method for switching a battery voltage between a large current consumption mode and a normal current consumption mode in a portable information processing terminal device which is supplied with power from a battery.
【０００２】[0002]
【従来の技術】従来の携帯型情報処理端末装置の電源供
給システムにおいては、例えばプリンタを使用する大電
流消費モードと、プリンタを使用しない通常電流消費モ
ードとの２つのモードがある端末装置には、このモード
に応じて電池電圧を切り換えるものは無かった。2. Description of the Related Art In a conventional power supply system for a portable information processing terminal device, a terminal device having two modes, for example, a large current consumption mode using a printer and a normal current consumption mode not using a printer , There was nothing to switch the battery voltage according to this mode.
【０００３】[0003]
【発明が解決しようとする課題】この従来の携帯型情報
処理端末装置の電源供給システムにおいては、大電流消
費モード時と通常電流消費モード時に電池のセル数を切
り換える手法が無かったので、プリンタのような大電流
消費装置が接続されていなくても、大電流消費モード時
の電池を装着していた。したがって、装置重量が重くな
るという問題点があった。In the conventional power supply system for the portable information processing terminal device, there is no method for switching the number of battery cells in the large current consumption mode and the normal current consumption mode. Even if such a large current consumption device was not connected, the battery in the large current consumption mode was installed. Therefore, there is a problem that the weight of the device becomes heavy.
【０００４】[0004]
【課題を解決するための手段】本発明の電源切換え方式
は、電池から電源を供給される携帯型情報処理端末装置
において、大電流消費モードと通常電流消費モードとの
２つのモードによって前記電池の使用セル数の変化を検
出する検出手段を備えている。According to the power supply switching system of the present invention, in a portable information processing terminal device which is supplied with power from a battery, the battery can be operated in two modes, a large current consumption mode and a normal current consumption mode. A detection means for detecting a change in the number of used cells is provided.
【０００５】また、前記検出手段が前記大電流消費モー
ド時と前記通常電流消費モード時との前記電池の出力電
圧を比較するコンパレータと、前記各モード時の電池電
圧の切換え制御を行う電源スイッチ制御回路とから成る
ことを特徴とする。Further, the detection means compares the output voltage of the battery in the large current consumption mode and the normal current consumption mode, and a power switch control for switching the battery voltage in each mode. And a circuit.
【０００６】[0006]
【実施例】次に、本発明について図面を参照して説明す
る。図１は本発明の一実施例のブロック図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention.
【０００７】大電流消費時と通常電流消費時におけるロ
ジック系を駆動させるＶｃｃ生成と大電流消費装置（プ
リンタなど）７への電池電圧供給とを行う本実施例は、
電池モジュール（ＢＡＴ）１の電圧と電圧監視レベル集
積回路（ＬＶＳ）１０からの大電流消費モード用電圧
（電圧監視レベルＬＶ１）とを比較する大電流消費モー
ド識別回路（ＩＤＡ）３と、電圧監視レベルＬＶ１を抵
抗（Ｒ）１とＲ２とにより分圧して通常電流消費モード
用電圧（電圧監視レベルＬＶ２）を生成する分圧抵抗
（ＤＶＲ）２と、ＢＡＴ１の電圧と電圧電圧監視レベル
ＬＶ２との比較結果とＩＤＡ３の出力信号の反転信号と
の論理積をとる通常電流消費モード識別回路（ＩＤＢ）
４と、ＩＤＡ３，ＩＤＢ４の出力の電圧レベルによって
ＢＡＴ１が大電流消費モード用か通常電流消費モード用
かを判断してオンする大電流消費モード用電源スイッチ
制御回路（ＳＷＣＡ）５，通常電流消費モード用電源ス
イッチ制御回路（ＳＷＣＢ）６と、ＳＷＣＡ５，ＳＷＣ
Ｂ６を通じてＢＡＴ１の電池電圧を降圧させてＶｃｃ電
圧を生成する降圧回路（ＤＮＶＡ，ＤＮＶＢ）８，９と
から構成されている。This embodiment performs Vcc generation for driving a logic system during large current consumption and normal current consumption, and battery voltage supply to a large current consumption device (printer or the like) 7.
A large current consumption mode identification circuit (IDA) 3 for comparing the voltage of the battery module (BAT) 1 with the voltage for the large current consumption mode (voltage monitoring level LV1) from the voltage monitoring level integrated circuit (LVS) 10, and voltage monitoring The voltage dividing resistor (DVR) 2 that divides the level LV1 by the resistors (R) 1 and R2 to generate the normal current consumption mode voltage (voltage monitoring level LV2), and the voltage of BAT1 and the voltage / voltage monitoring level LV2. Normal current consumption mode identification circuit (IDB) that takes the logical product of the comparison result and the inverted signal of the output signal of IDA3
4, and a power switch control circuit (SWCA) 5 for a large current consumption mode that turns on by determining whether BAT1 is for a large current consumption mode or a normal current consumption mode based on the voltage levels of the outputs of IDA3 and IDB4. Power switch control circuit (SWCB) 6 and SWCA5, SWC
It is composed of step-down circuits (DNVA, DNVB) 8 and 9 which generate a Vcc voltage by stepping down the battery voltage of BAT1 through B6.
【０００８】続いて、本実施例の機能について説明す
る。Next, the function of this embodiment will be described.
【０００９】ＢＡＴ１の電池電圧をＩＤＡ３およびＩＤ
Ｂ４に供給する。ＬＶＳ１０から出力される大電流消費
モード用電圧（電圧監視レベルＬＶ１）をＩＤＡ３の
（＋）側に供給し、ＤＶＲ２を構成するＲ１とＲ２の定
数によって設定された通常電流消費モード用電圧（電圧
監視レベルＬＶ２＝Ｖ・ｒ２／（ｒ１＋ｒ２））をＩＤ
Ｂ４に供給する。ここでＶはＢＡＴ１の電圧レベル，ｒ
１，ｒ２はＲ１，Ｒ２の抵抗値である。The battery voltage of BAT1 is set to IDA3 and ID
Supply to B4. The high current consumption mode voltage (voltage monitoring level LV1) output from the LVS10 is supplied to the (+) side of the IDA3, and the normal current consumption mode voltage (voltage monitoring level) set by the constants of R1 and R2 forming DVR2 is supplied. ID level LV2 = Vr2 / (r1 + r2))
Supply to B4. Where V is the voltage level of BAT1, r
1, r2 are resistance values of R1 and R2.
【００１０】ＢＡＴ１の電圧レベルＶが電圧監視レベル
ＬＶ１の電圧値以上に達していたとき、つまりＩＤＡ３
のコンパレータの（＋）側の電圧値が（−）側の電圧値
（スレッシュホールドレベル）に達したときには、ＩＤ
Ａ３は大電流消費モード用の電池モジュールが装着され
ていると判断して出力値としてハイレベルを出力する。When the voltage level V of BAT1 reaches or exceeds the voltage value of the voltage monitoring level LV1, that is, IDA3
When the voltage value on the (+) side of the comparator reaches the voltage value (threshold level) on the (-) side,
A3 determines that the battery module for the large current consumption mode is mounted and outputs a high level as an output value.
【００１１】またＩＤＢ４は内部においてＩＤＡ３の出
力信号の反転信号の電圧レベルと電圧監視レベルＬＶ２
との論理積をとっているので、ローベレルを出力するこ
とにより、通常電流消費モード用の電池モジュールが装
着されていないことを検知する。The IDB4 internally has a voltage level of an inverted signal of the output signal of the IDA3 and a voltage monitoring level LV2.
Therefore, by outputting the low level, it is detected that the battery module for the normal current consumption mode is not mounted.
【００１２】ＢＡＴ１の電圧レベルＶが電圧監視レベル
ＬＶ１の電圧値未満で且つ電圧監視レベルＬＶ２の電圧
値以上に達していたときは、ＩＤＡ３のコンパレータの
（＋）側の電圧値は（−）側の電圧値（スレッシュホー
ルドレベル）に達していないので、ＩＤＡ３は大電流消
費モード用の電池モジュールが装着されていないと判断
し、出力値としてローレベルを出力する。When the voltage level V of BAT1 is less than the voltage value of the voltage monitoring level LV1 and reaches the voltage value of the voltage monitoring level LV2 or more, the voltage value on the (+) side of the comparator of the IDA3 is the (-) side. Since it has not reached the voltage value (threshold level) of, the IDA 3 determines that the battery module for the large current consumption mode is not installed, and outputs the low level as the output value.
【００１３】また、ＩＤＢ４内のコンパレータの（＋）
側の電圧値は（−）側の電圧値（スレッシュホールドレ
ベル）以上に達し、ＩＤＡ３の出力信号の反転信号の電
圧レベルと論理積をとることによって、ＢＡＴ１の電圧
値が電圧監視レベルＬＶ２の電圧値よりも高く、電圧監
視レベルＬＶ１の電圧値よりも低い電圧値に達し、通常
電流消費モード用の電池モジュールが接続されたと判断
する。Further, the (+) of the comparator in the IDB4
The voltage value on the side reaches the voltage value on the (-) side (threshold level) or more, and the logical value is ANDed with the voltage level of the inversion signal of the output signal of IDA3, so that the voltage value of BAT1 is the voltage of the voltage monitoring level LV2. The voltage value is higher than the voltage value and lower than the voltage value of the voltage monitoring level LV1, and it is determined that the battery module for the normal current consumption mode is connected.
【００１４】ＢＡＴ１の電圧レベルＶが電圧監視レベル
ＬＶ２の電圧値未満のときは、ＩＤＡ３およびＩＤＢ４
内の各コンパレータの（＋）側の電圧値は（−）側の電
圧値（スレッシュホールドレベル）に達していないの
で、ＩＤＡ３およびＩＤＢ４は大電流消費モードおよび
通常電流消費モード時に使用する電池電圧レベルに達し
ていないと判断し、出力としてローレベルを出力する。When the voltage level V of BAT1 is less than the voltage value of the voltage monitoring level LV2, IDA3 and IDB4
Since the voltage value on the (+) side of each of the comparators has not reached the voltage value on the (-) side (threshold level), IDA3 and IDB4 are the battery voltage levels used in the high current consumption mode and the normal current consumption mode. It is determined that the output has not reached, and a low level is output as the output.
【００１５】ＳＷＣＡ５およびＳＷＣＢ６はＩＤＡ３お
よびＩＤＢ４から供給される電圧レベルによって、装着
されている電池モジュールが大電流消費モード用か通常
電流消費モード用かを判断してそれぞれオン／オフ制御
を行う。The SWCA5 and SWCB6 determine whether the attached battery module is for the large current consumption mode or the normal current consumption mode based on the voltage levels supplied from the IDA3 and IDB4, and perform on / off control respectively.
【００１６】すなわち、ＳＷＣＢ６はＩＤＢ４からハイ
レベルの信号をゲートＧに入力することによってオン
し、ＤＮＶＢ９を通じて降圧された通常電流消費モード
用の電池モジュールの電圧値をＶｃｃとして生成する。That is, the SWCB 6 is turned on by inputting a high level signal from the IDB 4 to the gate G, and generates the voltage value of the battery module for the normal current consumption mode, which has been stepped down through the DNVB 9, as Vcc.
【００１７】また、ＳＷＣＡ５はＩＤＡ３からハイレベ
ルの信号をゲートＧに入力することによってオンし、Ｄ
ＮＶＡ８を通じて降圧された大電流消費モード用の電池
モジュールの電圧値をＶｃｃとして生成する。SWCA5 is turned on by inputting a high level signal from IDA3 to gate G, and DCA
The voltage value of the battery module for the large current consumption mode, which has been stepped down through the NVA 8, is generated as Vcc.
【００１８】このように本実施例によれば、大電流消費
モード時および通常電流消費モード時に、それぞれＤＮ
ＶＡ８およびＤＮＶＢ９を通じて所定のＶｃｃ電圧を供
給することができる。As described above, according to this embodiment, the DN is increased in the large current consumption mode and the normal current consumption mode, respectively.
A predetermined Vcc voltage can be supplied through VA8 and DNVB9.
【００１９】[0019]
【発明の効果】以上説明したように本発明の携帯型情報
処理端末装置における電源切換え方式は、例えばプリン
タ装着時（大電流消費モード時）とプリンタ未装着時
（通常電流消費モード時）とで電池電圧を可変すること
により、その携帯型情報処理端末装置に最適な電池モジ
ュールが装着されるので、装置重量の軽減をはかること
ができるという効果を有する。As described above, the power supply switching method in the portable information processing terminal device of the present invention is, for example, when the printer is installed (in the large current consumption mode) and when the printer is not installed (in the normal current consumption mode). By varying the battery voltage, the most suitable battery module is attached to the portable information processing terminal device, so that the weight of the device can be reduced.
【図１】本発明の一実施例のブロック図である。FIG. 1 is a block diagram of an embodiment of the present invention.
１ 電池モジュール（ＢＡＴ） ２ 分圧抵抗（ＤＶＲ） ３ 大電流消費モード識別回路（ＩＤＡ） ４ 通常電流消費モード識別回路（ＩＤＢ） ５ 大電流消費モード用電源スイッチ制御回路（ＳＷ
ＣＡ） ６ 通常電流消費モード用電源スイッチ制御回路（Ｓ
ＷＣＢ） ７ 大電流消費装置 ８ 降圧回路Ａ（ＤＮＶＡ） ９ 降圧回路Ｂ（ＤＮＶＢ） １０ 電圧監視レベル集積回路（ＬＶＳ）1 Battery Module (BAT) 2 Voltage Dividing Resistor (DVR) 3 Large Current Consumption Mode Identification Circuit (IDA) 4 Normal Current Consumption Mode Identification Circuit (IDB) 5 Large Current Consumption Mode Power Switch Control Circuit (SW)
CA) 6 Power switch control circuit for normal current consumption mode (S
WCB) 7 High current consumption device 8 Step-down circuit A (DNVA) 9 Step-down circuit B (DNVB) 10 Voltage monitoring level integrated circuit (LVS)
Claims (2)
理端末装置において、大電流消費モードと通常電流消費
モードとの２つのモードによって前記電池の使用セル数
の変化を検出する検出手段を備えることを特徴とする電
源切換え方式。1. A portable information processing terminal device supplied with power from a battery, comprising detection means for detecting a change in the number of used cells of the battery in two modes, a large current consumption mode and a normal current consumption mode. Power switching method characterized by
と前記通常電流消費モード時との前記電池の出力電圧を
比較するコンパレータと、前記各モード時の電池電圧の
切換え制御を行う電源スイッチ制御回路とから成ること
を特徴とする請求項１記載の電源切換え方式。2. A comparator for comparing the output voltage of the battery in the large current consumption mode and the normal current consumption mode by the detection means, and a power switch control for switching the battery voltage in each mode. 2. The power supply switching system according to claim 1, further comprising a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5033874A JPH06250977A (en) | 1993-02-24 | 1993-02-24 | Power switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5033874A JPH06250977A (en) | 1993-02-24 | 1993-02-24 | Power switching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06250977A true JPH06250977A (en) | 1994-09-09 |
Family
ID=12398667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5033874A Withdrawn JPH06250977A (en) | 1993-02-24 | 1993-02-24 | Power switching system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06250977A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9076198B2 (en) | 2010-09-30 | 2015-07-07 | Nec Corporation | Information processing apparatus, information processing system, information processing method, program and recording medium |
| CN111106614A (en) * | 2019-12-31 | 2020-05-05 | 北京德亚特应用科技有限公司 | Asynchronous motor energy balance circuit and method |
-
1993
- 1993-02-24 JP JP5033874A patent/JPH06250977A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9076198B2 (en) | 2010-09-30 | 2015-07-07 | Nec Corporation | Information processing apparatus, information processing system, information processing method, program and recording medium |
| CN111106614A (en) * | 2019-12-31 | 2020-05-05 | 北京德亚特应用科技有限公司 | Asynchronous motor energy balance circuit and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000509 |