JPH06268705A - Power supply device - Google Patents
Power supply deviceInfo
- Publication number
- JPH06268705A JPH06268705A JP5051647A JP5164793A JPH06268705A JP H06268705 A JPH06268705 A JP H06268705A JP 5051647 A JP5051647 A JP 5051647A JP 5164793 A JP5164793 A JP 5164793A JP H06268705 A JPH06268705 A JP H06268705A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- power supply
- power
- signal transmission
- transmission 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.)
- Withdrawn
Links
Landscapes
- Communication Control (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は電源供給装置に関し、特
に、信号伝達装置に用いられ、信号伝達装置の動作中
（信号伝達中）において電源スイッチの誤操作による電
源供給停止を防止できる電源供給装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device, and more particularly to a power supply device used for a signal transmission device and capable of preventing power supply stoppage due to an erroneous operation of a power switch during operation of the signal transmission device (during signal transmission). Regarding
【０００２】[0002]
【従来の技術】一般にこの種の電源供給装置として図２
に示す装置が知られている。図２において、電源供給装
置は電源スイッチ１１及び電源制御部１２を備えてお
り、電源スイッチ１１には商用電源（ＡＣ１００Ｖ）が
接続される。電源スイッチ１１がオンされると、電源制
御部１２にＡＣ１００Ｖが与えられる。電源制御部１２
ではＡＣ１００Ｖを整流して、つまり、直流（ＤＣ）に
変換して駆動電源として信号伝達装置１３に与える。2. Description of the Related Art Generally, FIG.
The device shown in is known. In FIG. 2, the power supply device includes a power switch 11 and a power control unit 12, and the power switch 11 is connected to a commercial power source (100 V AC). When the power switch 11 is turned on, AC 100V is applied to the power control unit 12. Power control unit 12
Then, AC100V is rectified, that is, converted into direct current (DC), and given to the signal transmission device 13 as a driving power supply.
【０００３】図２に示す例では、信号伝達装置１３は信
号伝達ライン１４を介して信号伝達装置１５と信号の送
受を行っている。なお、図２に示す例では信号伝達装置
１５側の電源供給装置は省略されている。In the example shown in FIG. 2, the signal transmission device 13 sends and receives signals to and from the signal transmission device 15 via the signal transmission line 14. In the example shown in FIG. 2, the power supply device on the signal transmission device 15 side is omitted.
【０００４】[0004]
【発明が解決しようとする課題】ところで、信号伝達装
置１３が信号の送受を行っている際（つまり、駆動電源
を供給されて動作中であるとき）、例えば、誤操作によ
って、電源スイッチ１１がオフされると、信号伝達装置
１３はその動作を停止していまい、信号伝達が中断され
て、データが破壊されてしまうという問題点がある。By the way, when the signal transmission device 13 is transmitting and receiving a signal (that is, when the drive power is supplied and is operating), the power switch 11 is turned off due to an erroneous operation, for example. Then, the signal transmission device 13 may stop its operation, and signal transmission may be interrupted, resulting in data destruction.
【０００５】本発明の目的は信号伝達中に誤操作等によ
って電源スイッチがオフされても駆動電源の供給を継続
することのできる電源供給装置を提供することにある。An object of the present invention is to provide a power supply device capable of continuing the supply of drive power even if the power switch is turned off due to an erroneous operation during signal transmission.
【０００６】[0006]
【課題を解決するための手段】本発明によれば、信号の
送受を行うための信号伝達装置に駆動電源を供給するた
めの電源供給装置であって、電源オン状態を示す電源オ
ン信号を出力する電源スイッチと、前記信号伝達装置へ
の駆動電源供給を制御する電源制御部と、前記信号の送
受中であるときアクセス信号を送出する送出手段と、前
記アクセス信号及び前記電源オン信号のうち少なくとも
一方を受けると電源要求信号を送出する電源要求手段と
を有し、前記電源制御部は前記電源要求信号を受けた際
前記駆動電源を前記信号伝達装置に供給するようにした
ことを特徴とする電源供給装置が得られる。According to the present invention, there is provided a power supply device for supplying drive power to a signal transmission device for transmitting and receiving a signal, which outputs a power-on signal indicating a power-on state. A power switch, a power control unit for controlling driving power supply to the signal transmission device, sending means for sending an access signal when the signal is being sent and received, and at least the access signal and the power-on signal. Power supply requesting means for transmitting a power supply request signal when receiving one, and the power supply control section supplies the drive power supply to the signal transmission device when the power supply request signal is received. A power supply device is obtained.
【０００７】[0007]
【実施例】以下本発明について実施例に基づいて説明す
る。EXAMPLES The present invention will be described below based on examples.
【０００８】図１を参照して、本発明による電源供給装
置２０は電源スイッチ２１、電源制御部２２、及びオア
回路２３を備えている。信号伝達装置２４は電源供給装
置２０から供給される駆動電源によって動作し、信号伝
達ライン２５を介して信号伝達装置２６と信号の送受を
行う（なお、図示しないが、信号伝達装置２６において
も電源供給装置２０と同様の構成の電源供給装置から駆
動電源が供給される）。Referring to FIG. 1, the power supply device 20 according to the present invention includes a power switch 21, a power control unit 22, and an OR circuit 23. The signal transmission device 24 is operated by the driving power supplied from the power supply device 20, and transmits / receives a signal to / from the signal transmission device 26 via the signal transmission line 25 (note that although not shown, the signal transmission device 26 also has a power supply). Driving power is supplied from a power supply device having the same configuration as the supply device 20).
【０００９】電源スイッチ２１をオンすると、電源スイ
ッチ２１から電源スイッチオン信号Ｓ１がオア回路２３
に与えられる。この結果、オア回路２３からハイレベル
信号が電源供給要求信号Ｓ２として電源制御部２２に与
えられる。電源制御部２２にはＡＣ１００Ｖが接続され
ており、電源制御部２２は電源供給要求信号Ｓ２に応答
してＡＣ１００Ｖを整流して駆動電源として信号伝達装
置２４に与える。これによって、信号伝達装置２４は動
作状態となる。When the power switch 21 is turned on, a power switch on signal S1 is sent from the power switch 21 to the OR circuit 23.
Given to. As a result, a high level signal is supplied from the OR circuit 23 to the power supply controller 22 as the power supply request signal S2. AC 100V is connected to the power supply control unit 22, and the power supply control unit 22 rectifies the AC 100V in response to the power supply request signal S2 and supplies it to the signal transmission device 24 as a driving power supply. As a result, the signal transmission device 24 is put into operation.
【００１０】いま、誤操作によって電源スイッチ２１が
オフされたとすると、電源スイッチ２１は電源スイッチ
オン信号の送出を停止する。一方、信号伝達装置２４及
び２６間で信号伝達が行われていると、信号伝達ライン
２５上の信号がアクセス信号Ｓ３としてオア回路２３に
与えられることになる。従って、オア回路２３からは電
源供給要求信号Ｓ２の送出が継続されることになり、電
源制御部２２からの駆動電源の供給が絶たれることはな
い。If the power switch 21 is turned off by an erroneous operation, the power switch 21 stops sending the power switch on signal. On the other hand, when signal transmission is being performed between the signal transmission devices 24 and 26, the signal on the signal transmission line 25 is given to the OR circuit 23 as the access signal S3. Therefore, the OR circuit 23 continues to send the power supply request signal S2, and the supply of drive power from the power supply controller 22 is not interrupted.
【００１１】なお、電源スイッチ２１がオフされた状態
で、信号伝達装置２４及び２６間で信号伝達が行われて
いなければ、つまり、アクセス信号Ｓ３がオア回路２３
に与えられなければ、電源制御部２２は駆動電源の供給
を停止し、信号伝達装置２４は動作を停止する。つま
り、正常に電源スイッチ２１をオフした際には、信号伝
達装置２４は動作を停止する。When the power switch 21 is off and no signal is being transmitted between the signal transmitting devices 24 and 26, that is, the access signal S3 is the OR circuit 23.
If not given, the power supply control unit 22 stops the supply of drive power and the signal transmission device 24 stops operating. That is, when the power switch 21 is normally turned off, the signal transmission device 24 stops operating.
【００１２】[0012]
【発明の効果】以上説明したように、本発明では誤操作
等によって電源スイッチがオフされた際においても信号
伝達装置が信号の送受中であれば、信号伝達装置への電
源供給が絶たれることがなく、その結果、信号伝達の中
断によるデータを防止できるという効果がある。As described above, in the present invention, even when the power switch is turned off due to an erroneous operation or the like, if the signal transmitting / receiving device is transmitting / receiving a signal, the power supply to the signal transmitting device may be cut off. As a result, there is an effect that data due to interruption of signal transmission can be prevented.
【図１】本発明による電源供給装置の一実施例を説明す
るためのブロック図である。FIG. 1 is a block diagram illustrating an embodiment of a power supply device according to the present invention.
【図２】従来の電源供給装置を説明するためのブロック
図である。FIG. 2 is a block diagram for explaining a conventional power supply device.
２１ 電源スイッチ ２２ 電源制御部 ２３ オア回路 ２４ 信号伝達装置 ２５ 信号伝達ライン ２６ 信号伝達装置 21 power switch 22 power control unit 23 OR circuit 24 signal transmission device 25 signal transmission line 26 signal transmission device
Claims (3)
駆動電源を供給するための電源供給装置であって、電源
オン状態を示す電源オン信号を出力する電源スイッチ
と、前記信号伝達装置への駆動電源供給を制御する電源
制御部と、前記信号の送受中であるときアクセス信号を
送出する送出手段と、前記アクセス信号及び前記電源オ
ン信号のうち少なくとも一方を受けると電源要求信号を
送出する電源要求手段とを有し、前記電源制御部は前記
電源要求信号を受けた際前記駆動電源を前記信号伝達装
置に供給するようにしたことを特徴とする電源供給装
置。1. A power supply device for supplying drive power to a signal transmission device for transmitting and receiving a signal, comprising: a power supply switch for outputting a power-on signal indicating a power-on state; and the signal transmission device. A power supply control unit for controlling the drive power supply, a sending means for sending an access signal when the signal is being sent and received, and a power supply request signal when at least one of the access signal and the power-on signal is received. A power supply requesting unit, wherein the power supply control unit supplies the drive power supply to the signal transmission device when receiving the power supply request signal.
いて、前記信号伝達装置は信号伝達ラインを介して他の
信号伝達装置と信号の送受を行い、前記送出手段は前記
信号伝達ラインに接続されるとともに前記電源要求手段
に接続された信号線であることを特徴とする電源供給装
置。2. The power supply device according to claim 1, wherein the signal transmission device transmits / receives a signal to / from another signal transmission device via a signal transmission line, and the transmission means is connected to the signal transmission line. And a signal line connected to the power supply requesting means.
いて、前記電源要求手段はオア回路であることを特徴と
する電源供給装置。3. The power supply device according to claim 2, wherein the power supply requesting means is an OR circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5051647A JPH06268705A (en) | 1993-03-12 | 1993-03-12 | Power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5051647A JPH06268705A (en) | 1993-03-12 | 1993-03-12 | Power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06268705A true JPH06268705A (en) | 1994-09-22 |
Family
ID=12892652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5051647A Withdrawn JPH06268705A (en) | 1993-03-12 | 1993-03-12 | Power supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06268705A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0993306A (en) * | 1995-09-25 | 1997-04-04 | Nec Corp | Storage type data communication terminal equipment |
-
1993
- 1993-03-12 JP JP5051647A patent/JPH06268705A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0993306A (en) * | 1995-09-25 | 1997-04-04 | Nec Corp | Storage type data communication terminal equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000530 |