JPH11289687A - Device driven by power adapter and secondary battery - Google Patents
Device driven by power adapter and secondary batteryInfo
- Publication number
- JPH11289687A JPH11289687A JP10091400A JP9140098A JPH11289687A JP H11289687 A JPH11289687 A JP H11289687A JP 10091400 A JP10091400 A JP 10091400A JP 9140098 A JP9140098 A JP 9140098A JP H11289687 A JPH11289687 A JP H11289687A
- Authority
- JP
- Japan
- Prior art keywords
- power
- adapter
- secondary battery
- power supply
- supplied
- 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
Landscapes
- Power Sources (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Rectifiers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電源アダプターと
２次電池の双方から電源供給を受けられるようにした装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus capable of receiving power from both a power adapter and a secondary battery.
【０００２】[0002]
【従来の技術】装置を駆動するための電源としては、交
流電圧（商用交流電圧等）を所定レベルの直流電圧に変
換して電源供給を行う電源アダプター（所謂ＡＣアダプ
ター）と、充電による繰り返しの使用が可能な２次電池
が挙げられる。2. Description of the Related Art As a power supply for driving an apparatus, a power supply adapter (so-called AC adapter) for converting an AC voltage (commercial AC voltage or the like) into a DC voltage of a predetermined level and supplying power thereto, Secondary batteries that can be used are listed.
【０００３】例えば、図３に示すように、装置ａに対し
てスイッチ手段ｂを介して電源アダプターｃと２次電池
ｄとを選択的に接続することができるようにした構成が
挙げられる。この場合、電源アダプターｃや２次電池ｄ
の電源容量は装置ａのピーク時における消費電力を充分
賄うに足る容量とされ、２次電池ｄの充電が充分である
ときにはスイッチ手段ｂを２次電池ｄ側に切り換えて装
置ａを駆動し、また、２次電池ｄの充電が不充分である
ときにはスイッチ手段ｂを電源アダプターｃ側に切り換
えて装置ａを駆動することができる。For example, as shown in FIG. 3, there is a configuration in which a power supply adapter c and a secondary battery d can be selectively connected to a device a via a switch means b. In this case, the power adapter c or the secondary battery d
Is sufficient to cover the power consumption at the peak of the device a, and when the rechargeable battery d is sufficiently charged, the switch means b is switched to the rechargeable battery d to drive the device a. Further, when the charging of the secondary battery d is insufficient, the switch a can be switched to the power supply adapter c to drive the device a.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記し
た装置にあっては、電源アダプターや２次電池の製造コ
ストがその電源容量にほぼ比例して増加してしまうとい
う問題や、装置の消費電力が多いほど電源アダプター等
に要求される電源容量が大きくなるため、その体積の増
加、延いては装置の大型化を招いてしまうといった問題
がある。However, in the above-described apparatus, the problem that the manufacturing cost of the power supply adapter and the secondary battery increases almost in proportion to the power supply capacity, and the power consumption of the apparatus decreases. The larger the number is, the larger the power capacity required for the power adapter and the like is. Therefore, there is a problem that the volume is increased and the size of the apparatus is increased.
【０００５】そこで、本発明は、電源アダプターの電源
容量及び製造コストの低減を図ることを課題とする。Accordingly, an object of the present invention is to reduce the power supply capacity and manufacturing cost of a power supply adapter.
【０００６】[0006]
【課題を解決するための手段】本発明は上記した課題を
解決するために、電源容量が装置の駆動時の定格電力未
満とされた電源アダプターと、該電源アダプターによっ
て充電される２次電池との双方から電源供給が行われる
ように構成したものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a power adapter having a power capacity less than a rated power when the apparatus is driven, and a secondary battery charged by the power adapter. , And power is supplied from both.
【０００７】従って、本発明によれば、電源アダプター
と２次電池とを併用して装置を駆動することで、装置を
駆動するに際して電源アダプターだけでは不足する供給
電力を２次電池により補うことができる。Therefore, according to the present invention, by driving the apparatus using both the power adapter and the secondary battery, it is possible to make up for the insufficient power supplied by the power adapter alone with the secondary battery when driving the apparatus. it can.
【０００８】[0008]
【発明の実施の形態】図１は本発明に係る装置の基本構
成を示すものであり、装置１は、交流電圧を直流電圧に
変換する機能を有する電源アダプター２と、２次電池３
とから電源供給を同時に受ける構成とされる。尚、本発
明に関する限り装置１についてその構成の如何は問わな
いので、各種の音響機器や映像機器、コンピュータ等に
幅広く適用することができる。FIG. 1 shows a basic configuration of an apparatus according to the present invention. An apparatus 1 includes a power adapter 2 having a function of converting an AC voltage to a DC voltage, and a secondary battery 3.
And the power supply is simultaneously received from the power supply. It should be noted that the configuration of the apparatus 1 does not matter as far as the present invention is concerned, so that the apparatus 1 can be widely applied to various audio equipment, video equipment, computers and the like.
【０００９】内部に交流−直流変換手段（ＡＣ−ＤＣコ
ンバーター等。）を有する電源アダプター２は、その電
源容量が装置１の駆動時における定格電力未満とされて
おり、また、２次電池３は電源アダプター２によって充
電されるようになっている。The power supply adapter 2 having AC-DC conversion means (AC-DC converter, etc.) therein has a power supply capacity less than the rated power when the apparatus 1 is driven. The battery is charged by the power adapter 2.
【００１０】装置１を駆動する際には、上記のように電
源アダプター２の電源容量だけでは装置１の定格電力を
賄うことができないため、当該電源アダプター２と２次
電池３との双方から装置１に電源供給が行われる。When the device 1 is driven, the power capacity of the power adapter 2 alone cannot cover the rated power of the device 1 as described above. 1 is supplied with power.
【００１１】例えば、図示するように、第１のスイッチ
手段４を介して電源アダプター２を装置１又は２次電池
３に対して選択的に接続するとともに、第２のスイッチ
手段５を介して装置１と２次電池３とを接続する。つま
り、第１のスイッチ手段４は装置１との接続接点４ａ及
び２次電池３との接続接点４ｂを有しており、電源アダ
プター２と装置１とを接続するか又は電源アダプター２
と２次電池３とを接続するかを規定する。また、第２の
スイッチ手段５は２次電池３を装置１に接続するか否か
を規定するオン／オフスイッチである。尚、これらのス
イッチ手段には、例えば、半導体スイッチ素子、リレー
接点、手動スイッチ等が用いられるが、図では単にスイ
ッチの記号で示している。For example, as shown in the figure, the power supply adapter 2 is selectively connected to the device 1 or the secondary battery 3 via the first switch means 4 and the device is connected via the second switch means 5. 1 and the secondary battery 3 are connected. That is, the first switch means 4 has a connection contact 4a with the device 1 and a connection contact 4b with the secondary battery 3, and connects the power adapter 2 to the device 1 or the power adapter 2
And the secondary battery 3 are connected. The second switch means 5 is an on / off switch that determines whether or not the secondary battery 3 is connected to the device 1. In addition, for example, a semiconductor switch element, a relay contact, a manual switch, and the like are used as these switch means, but are simply indicated by a switch symbol in the figure.
【００１２】装置１の消費電力についてある程度の変動
幅が認められる場合（例えば、装置の最低消費電力とピ
ーク電力とに比較的差がある場合等。）には、電源アダ
プター２と２次電池３との双方から常に装置１への電源
供給を行う必要はないので、コンピュータ等の計算手段
や専用回路を用いて装置１内に実現される制御手段６に
よって、装置１の消費電力に応じて電源アダプター２や
２次電池３から受ける電源供給を制御することが好まし
い。When the power consumption of the device 1 has a certain fluctuation range (for example, when there is a relatively difference between the minimum power consumption and the peak power of the device), the power adapter 2 and the secondary battery 3 It is not necessary to always supply power to the apparatus 1 from both of them. Therefore, the control means 6 realized in the apparatus 1 by using a calculation means such as a computer or a dedicated circuit allows the power to be supplied in accordance with the power consumption of the apparatus 1. It is preferable to control power supply from the adapter 2 and the secondary battery 3.
【００１３】即ち、制御手段６によって、装置１の駆動
時における消費電力が電源アダプター２による供給電力
を越えていると判断された場合には、第１のスイッチ手
段４において装置１側の接点４ａを選択し、かつ第２の
スイッチ手段５を閉じることによって、装置１が電源ア
ダプター２及び２次電池３から電源供給を受けるように
制御する。That is, when the control means 6 determines that the power consumption during the operation of the apparatus 1 exceeds the power supplied by the power adapter 2, the first switch means 4 uses the contact 4a on the apparatus 1 side. Is selected and the second switch means 5 is closed to control the apparatus 1 to receive power supply from the power adapter 2 and the secondary battery 3.
【００１４】また、制御手段６によって、装置１の駆動
時における消費電力が電源アダプター２による供給電力
以下であると判断された場合には、第１のスイッチ手段
４において装置１側の接点４ａを選択し、かつ第２のス
イッチ手段５を開くことによって、装置１が電源アダプ
ター２のみから電源供給を受けるように制御する。If the control means 6 determines that the power consumption during the operation of the apparatus 1 is less than the power supplied by the power adapter 2, the first switch means 4 sets the contact 4a on the apparatus 1 side. By selecting and opening the second switch means 5, the apparatus 1 is controlled so as to receive power supply only from the power supply adapter 2.
【００１５】尚、２次電池３の充電を行う場合には、第
１のスイッチ手段４において２次電池３側の接点４ｂを
選択し、かつ第２のスイッチ手段５を開いた状態にすれ
ば良い。When the secondary battery 3 is charged, the first switch means 4 selects the contact 4b on the secondary battery 3 side and the second switch means 5 is opened. good.
【００１６】また、装置１における現在の消費電力を把
握するためには、消費電力の検出手段を装置１内に積極
的に設ける方法と、装置１の現在の状況下において動作
している回路や構成部（電源アダプター等を含む。）を
制御手段６が判断し、これらについての設計上の電力値
から消費電力を判断する方法とがある。尚、前者の方法
によれば、消費電力を正確に把握できるという利点があ
る反面、構成が複雑化したりやコストの上昇を伴うとい
う不利益があり、他方、後者の方法によれば回路構成が
簡単である反面、正確な消費電力が得られないので、場
合に応じて両者を組み合せた方法を用いることが実用的
である。Further, in order to grasp the current power consumption of the device 1, a method of positively providing power consumption detecting means in the device 1, a circuit operating under the current condition of the device 1, There is a method in which the control unit 6 determines the components (including the power adapter and the like) and determines the power consumption from the designed power values of these components. According to the former method, there is an advantage that power consumption can be accurately grasped, but on the other hand, there is a disadvantage that the configuration is complicated or the cost is increased. Although it is simple, accurate power consumption cannot be obtained. Therefore, it is practical to use a method that combines the two depending on the case.
【００１７】電源アダプター２から装置１への電源供給
は、両者が電気的に接続されていることが前提となるの
で、電源アダプター２と装置１との接続状態を自動的に
検知するための接続検知手段を設ける場合には、電源端
子の端子電圧を検出して接続の有無を判断する方法や、
近接センサー、検知用スイッチや接点等を付設して接続
の有無を判断する方法等を用いることができる。これに
よって、電源アダプター２と装置１とが接続されていな
いときには２次電池３から装置１への電源供給が行われ
るようにする。The power supply from the power adapter 2 to the device 1 is based on the premise that both are electrically connected. Therefore, a connection for automatically detecting the connection state between the power adapter 2 and the device 1 is provided. When the detection means is provided, a method of detecting the terminal voltage of the power supply terminal to determine the presence or absence of connection,
A method of judging the presence or absence of connection by providing a proximity sensor, a detection switch, a contact, or the like can be used. Thus, when the power adapter 2 and the device 1 are not connected, power is supplied from the secondary battery 3 to the device 1.
【００１８】また、２次電池３についてはこれを装置１
に内蔵する方法と、装置１に対して着脱自在に取り付け
られるように構成する方法とがあるが、電源アダプター
２の電源容量が装置１の消費電力を賄うのに充分でない
場合には常に２次電池３を必要とするので前者の方法を
採用することが望ましい。また、後者の方法において、
２次電池３と装置１との接続状態を自動的に検知する接
続検知手段を設けた場合には、２次電池３と装置１とが
接続されていないときに電源アダプター２から装置１へ
の電源供給が行われるようにし、また、装置１に電源ア
ダプター２及び２次電池３が接続されている場合に電源
アダプター２により２次電池３の充電を行うように制御
することができる（但し、制御手段６の電源が別途必要
である。）。The secondary battery 3 is connected to the device 1
There is a method in which the power supply is built in the device 1 and a method in which the power supply is detachably attached to the device 1. However, if the power capacity of the power adapter 2 is not sufficient to cover the power consumption of the device 1, Since the battery 3 is required, it is desirable to adopt the former method. In the latter method,
When the connection detecting means for automatically detecting the connection state between the secondary battery 3 and the device 1 is provided, when the secondary battery 3 and the device 1 are not connected, the connection from the power adapter 2 to the device 1 is performed. Power can be supplied, and when the power adapter 2 and the secondary battery 3 are connected to the apparatus 1, control can be performed such that the secondary battery 3 is charged by the power adapter 2 (however, A power supply for the control means 6 is required separately.)
【００１９】尚、図１の構成において、第１のスイッチ
手段４において装置１側の接点４ａが選択され、第２の
スイッチ手段５がオン状態となっており、２次電池３が
未充電の状態である場合には、２次電池３からの供給電
力の補償ができないので、このような事態を避けるため
には、装置の最小必要電力を供給する内蔵電池を装置１
内に付設しておき、制御手段６が装置１の不動作あるい
は待機状態を検知した場合に第１のスイッチ手段４を制
御して電源アダプター２と２次電池３とを接続し、か
つ、第２のスイッチ手段５を開いて２次電池３が装置本
体に接続されないようにし、２次電池３の充電をこまめ
に行うようにしておくと、２次電池による追加の電力を
直ちに装置１に供給することができるようになる。In the configuration shown in FIG. 1, the contact 4a on the device 1 side is selected by the first switch means 4, the second switch means 5 is turned on, and the secondary battery 3 is not charged. In the state, the power supplied from the secondary battery 3 cannot be compensated. Therefore, in order to avoid such a situation, the built-in battery for supplying the minimum necessary power of the device must be replaced with the device 1
The control means 6 controls the first switch means 4 to connect the power adapter 2 and the secondary battery 3 when the control means 6 detects that the apparatus 1 is inactive or in a standby state, and If the second switch means 5 is opened to prevent the rechargeable battery 3 from being connected to the apparatus main body and the rechargeable battery 3 is frequently charged, the additional power from the rechargeable battery is immediately supplied to the apparatus 1. Will be able to
【００２０】図２は、横軸に時間「ｔ」をとり、縦軸に
電力「Ｗ」をとって全体の消費電力の時間的変化の一例
を示すグラフ図と、そのときの各スイッチ手段の状態を
示すタイムチャート図とを併せて示したものであり、グ
ラフ図中の「Ｗ１」は装置１及び電源アダプター２の定
格電力値を、「Ｗｐ１」はピーク電力値をそれぞれ示
し、「Ｗａ」は電源アダプター２による最大供給電力値
を示している。また、タイムチャート図における信号
「ＳＷ１」は第１のスイッチ手段４の状態（４ａ側又は
４ｂ側）を示す信号を意味し、信号「ＳＷ２」は第２の
スイッチ手段５の状態（オン／オフ）を示す信号を意味
している。FIG. 2 is a graph showing an example of a temporal change in the total power consumption with time “t” plotted on the horizontal axis and power “W” plotted on the vertical axis. It is also shown together with a time chart diagram showing the state, in which "W1" indicates the rated power value of the device 1 and the power adapter 2, "Wp1" indicates the peak power value, and "Wa". Indicates the maximum power supply value of the power supply adapter 2. The signal "SW1" in the time chart means a signal indicating the state (4a side or 4b side) of the first switch means 4, and the signal "SW2" indicates the state (ON / OFF) of the second switch means 5. ).
【００２１】図２に「０≦ｔ≦ｔ１」で示す期間「Ｔ
ｃ」は２次電池３の充電期間を示しており、当該期間中
は第１のスイッチ手段４において２次電池３側の接点４
ｂが選択され、かつ第２のスイッチ手段５はオフ状態と
なっている。よって、電源アダプター２はその最大電力
Ｗａをもって２次電池３の充電を行った後、供給電力が
徐々に低下してｔ＝ｔ１の時点で２次電池３の充電が完
了する。In FIG. 2, the period "T" indicated by "0≤t≤t1"
"c" indicates a charging period of the secondary battery 3, during which the first switch means 4 causes the contact 4 on the secondary battery 3 side.
b has been selected and the second switch means 5 is in the off state. Therefore, after the power supply adapter 2 charges the secondary battery 3 with the maximum power Wa, the supplied power gradually decreases, and the charging of the secondary battery 3 is completed at time t = t1.
【００２２】その後、「ｔ２≦ｔ≦ｔ３」に示す期間
「Ｔｄ」では装置１が駆動されるが、当該期間中は第１
のスイッチ手段４において装置１側の接点４ａが選択さ
れ、かつ第２のスイッチ手段５はオン状態となってい
る。つまり、電源アダプター２によって供給し得る最大
電力Ｗａが定格電力Ｗ１より小さい値に設計されている
ので、既に充電済の２次電池３からの電源供給によって
電力不足を補う。尚、図ではｔ＝ｔ２の時点で装置本体
に電源を投入した後消費電力が一時的にＷ１を越えた後
に低下し、それから上昇に転じて漸くの間ピーク電力値
Ｗｐ１を示した後徐々に低下していく様子を示している
（例えば、装置１を携帯型ビデオカメラとした場合に、
電源投入後に録画動作を一定時間行った状況を想起すれ
ば良い。）。Thereafter, the apparatus 1 is driven during a period “Td” indicated by “t2 ≦ t ≦ t3”.
The contact 4a on the device 1 side is selected by the switch means 4, and the second switch means 5 is on. That is, since the maximum power Wa that can be supplied by the power supply adapter 2 is designed to be smaller than the rated power W1, the power shortage is compensated for by the power supply from the already charged secondary battery 3. In the figure, after turning on the power to the apparatus main body at the time of t = t2, the power consumption temporarily decreases after exceeding W1, and then gradually increases after gradually increasing to the peak power value Wp1 for a while. (For example, when the device 1 is a portable video camera,
What is necessary is just to recall a situation in which the recording operation has been performed for a certain period of time after power-on. ).
【００２３】ｔ＝ｔ３の時点以後は消費電力がＷａ以下
となり、第２のスイッチ手段５がオフ状態に切り換わ
る。つまり、この場合には電源アダプター２だけで充分
に消費電力を賄うことができるので、２次電池３の助け
は不要となる。その後、消費電力が再びＷａを越えたと
きには第２のスイッチ手段５がオン状態に切り換わって
電源アダプター２及び２次電池３の双方により装置１の
駆動が行われる。After the time point t = t3, the power consumption becomes equal to or less than Wa, and the second switch means 5 switches to the off state. That is, in this case, the power consumption can be sufficiently provided only by the power supply adapter 2, so that the help of the secondary battery 3 is unnecessary. Thereafter, when the power consumption exceeds Wa again, the second switch means 5 switches to the ON state, and the device 1 is driven by both the power adapter 2 and the secondary battery 3.
【００２４】しかして、従来の装置では電源アダプター
や２次電池の電源容量について上記ピーク電力値Ｗｐ１
を保証するだけの電源供給能力がそれぞれ必要とされる
のに対して、本発明では、電源アダプター２の電源容量
を定格電力Ｗ１未満に抑えることによって電源アダプタ
ー２の製造コストを低減することができ、しかも、２次
電池３については電源アダプター２を補償する分の電源
容量を用意すれば済むので、全体的なコストの低減を図
ることができる。However, in the conventional apparatus, the power supply capacity of the power supply adapter and the secondary battery is equal to the peak power value Wp1.
In the present invention, the power supply capacity of the power adapter 2 is required to ensure that the power supply capacity of the power adapter 2 is less than the rated power W1. In addition, as for the secondary battery 3, since it is sufficient to prepare a power supply capacity for compensating the power supply adapter 2, it is possible to reduce the overall cost.
【００２５】[0025]
【発明の効果】以上に記載したところから明らかなよう
に、請求項１に係る発明によれば、電源アダプターと２
次電池とを併用することで、装置の駆動に際して電源ア
ダプターだけでは不足する供給電力を２次電池により補
うことができるので、電源アダプターの電源容量及び製
造コストを低減するとともに、２次電池を含む全体のコ
ストを引き下げることができる。As is apparent from the above description, according to the first aspect of the present invention, the power supply adapter and the
By using the secondary battery together, when the device is driven, the power supply that is insufficient with the power adapter alone can be supplemented by the secondary battery, so that the power capacity of the power adapter and the manufacturing cost are reduced, and the secondary battery is included. Overall costs can be reduced.
【００２６】また、請求項２に係る発明によれば、装置
の駆動時の消費電力が電源アダプターによる供給電力以
下である場合に、電源アダプターのみから装置に電源供
給を行うことによって２次電池の消耗を抑え、装置の駆
動時の消費電力が電源アダプターによる供給電力を越え
た場合に、２次電池による電源アダプターの電源補助を
直ちに開始することができる。According to the second aspect of the present invention, when the power consumption at the time of driving the device is equal to or less than the power supplied by the power adapter, the power is supplied to the device only from the power adapter, so that the power of the secondary battery is reduced. When the power consumption during operation of the apparatus exceeds the power supplied by the power supply adapter, the auxiliary power supply of the power supply adapter by the secondary battery can be immediately started.
【図１】本発明に係る装置の基本構成を示す図である。FIG. 1 is a diagram showing a basic configuration of an apparatus according to the present invention.
【図２】消費電力の時間的変化の一例を示すグラフ図
と、そのときの各スイッチ手段の状態を示すタイムチャ
ート図とを併せて示すものである。FIG. 2 is a graph showing an example of a temporal change in power consumption and a time chart showing a state of each switch means at that time.
【図３】従来例の説明図である。FIG. 3 is an explanatory diagram of a conventional example.
１…装置、２…電源アダプター、３…２次電池、６…制
御手段DESCRIPTION OF SYMBOLS 1 ... Device, 2 ... Power adapter, 3 ... Secondary battery, 6 ... Control means
Claims (2)
しかつ電源容量が装置の駆動時の定格電力未満とされた
電源アダプターと、該電源アダプターによって充電され
る２次電池とを備えており、装置を駆動する際に、電源
アダプターと２次電池との双方から電源供給が行われる
ことを特徴とする電源アダプター及び２次電池により駆
動される装置。1. A power supply adapter having a function of converting an AC voltage to a DC voltage and having a power supply capacity less than a rated power when the apparatus is driven, and a secondary battery charged by the power supply adapter. And a device driven by the power adapter and the secondary battery, wherein power is supplied from both the power adapter and the secondary battery when the device is driven.
２次電池により駆動される装置において、 装置の駆動時の消費電力が電源アダプターによる供給電
力を越えていると判断した場合には、電源アダプター及
び２次電池から装置への電源供給を行い、また、装置の
駆動時の消費電力が電源アダプターによる供給電力以下
であると判断した場合には電源アダプターのみから装置
への電源供給を行う制御手段を設けたことを特徴とする
電源アダプター及び２次電池により駆動される装置。2. An apparatus driven by the power adapter and the secondary battery according to claim 1, wherein when it is determined that the power consumption during driving of the apparatus exceeds the power supplied by the power adapter, the power adapter is used. And control means for supplying power to the device from the secondary battery and for supplying power to the device only from the power adapter when it is determined that the power consumption during driving of the device is less than the power supplied by the power adapter. A device driven by a power supply adapter and a secondary battery, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10091400A JPH11289687A (en) | 1998-04-03 | 1998-04-03 | Device driven by power adapter and secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10091400A JPH11289687A (en) | 1998-04-03 | 1998-04-03 | Device driven by power adapter and secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11289687A true JPH11289687A (en) | 1999-10-19 |
Family
ID=14025341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10091400A Pending JPH11289687A (en) | 1998-04-03 | 1998-04-03 | Device driven by power adapter and secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11289687A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003103871A (en) * | 2001-09-28 | 2003-04-09 | Shinsei Industries Co Ltd | Power supply switching control method for printer and power supply for printer |
| JP2006185086A (en) * | 2004-12-27 | 2006-07-13 | Mitsubishi Electric Corp | Fingerprint matching apparatus |
| WO2012077429A1 (en) * | 2010-12-10 | 2012-06-14 | 株式会社豊田自動織機 | Vehicle charging device |
| JP2014060896A (en) * | 2012-09-19 | 2014-04-03 | Toshiba Corp | Power source system, power source control device, and program |
| JP2014174944A (en) * | 2013-03-13 | 2014-09-22 | Nec Corp | Multiple power supply apparatus, method of controlling multiple power supply apparatus, and program |
| JP2015189025A (en) * | 2014-03-27 | 2015-11-02 | セイコーエプソン株式会社 | printer |
| JP2019111759A (en) * | 2017-12-25 | 2019-07-11 | キヤノン電子株式会社 | Printer and method for controlling the same |
-
1998
- 1998-04-03 JP JP10091400A patent/JPH11289687A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003103871A (en) * | 2001-09-28 | 2003-04-09 | Shinsei Industries Co Ltd | Power supply switching control method for printer and power supply for printer |
| JP2006185086A (en) * | 2004-12-27 | 2006-07-13 | Mitsubishi Electric Corp | Fingerprint matching apparatus |
| WO2012077429A1 (en) * | 2010-12-10 | 2012-06-14 | 株式会社豊田自動織機 | Vehicle charging device |
| JP2014060896A (en) * | 2012-09-19 | 2014-04-03 | Toshiba Corp | Power source system, power source control device, and program |
| US10038335B2 (en) | 2012-09-19 | 2018-07-31 | Kabushiki Kaisha Toshiba | Power supply system and power supply controller |
| JP2014174944A (en) * | 2013-03-13 | 2014-09-22 | Nec Corp | Multiple power supply apparatus, method of controlling multiple power supply apparatus, and program |
| JP2015189025A (en) * | 2014-03-27 | 2015-11-02 | セイコーエプソン株式会社 | printer |
| JP2019111759A (en) * | 2017-12-25 | 2019-07-11 | キヤノン電子株式会社 | Printer and method for controlling the same |
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