JPS5985045U - Power switching circuit - Google Patents
Power switching circuitInfo
- Publication number
- JPS5985045U JPS5985045U JP17848282U JP17848282U JPS5985045U JP S5985045 U JPS5985045 U JP S5985045U JP 17848282 U JP17848282 U JP 17848282U JP 17848282 U JP17848282 U JP 17848282U JP S5985045 U JPS5985045 U JP S5985045U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- converter
- output
- switching circuit
- power supply
- 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.)
- Granted
Links
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
- Dc-Dc Converters (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
゛ 第１図、第２図は従来の電源切換回路を示す図、第
３図は本考案になる電源切換回路の一実施例を示すブロ
ック図であり、第４図は第３図の具体的回路を示す図で
ある。
１・・・入力端子、８・・・システムコントロール回路
、９・・・ＤＣ−ＤＣコンバータ、１２・・・シリーズ
レギュレータ、ｓｗｌ、ｓｗ２．ｓｗ３・・・スイッチ
。゛ Figures 1 and 2 are diagrams showing conventional power supply switching circuits, Figure 3 is a block diagram showing an embodiment of the power supply switching circuit according to the present invention, and Figure 4 is a diagram showing a specific example of the power supply switching circuit of the present invention. It is a diagram showing a circuit. DESCRIPTION OF SYMBOLS 1... Input terminal, 8... System control circuit, 9... DC-DC converter, 12... Series regulator, swl, sw2. sw3...switch.
Claims (3)
より制御可能で第１の電圧より第２の電圧を得るＤＣ−
ＤＣコンバータと、電源の出力あるいはＤＣ−ＤＣコン
バータの出力を切り換えて出、 力するスイッチ手段
と、このスイッチ手段に接続されたシリーズレギュレー
タとを具備し、第２の電圧がスイッチ手段を介してＤＣ
−ＤＣコンバータより得られるときはこれを用いてシリ
ーズレギュレータにより第３の電圧を得るようにし、第
２の電圧がＤＣ−ＤＣコンバータより得られないときは
スイッチ手段を介して電源より得られる第１の電圧を用
いてシリーズレギュレータにより第３の電圧を得るよう
にしたことを特徴とする電源切換回路。(1) A power supply that supplies a first voltage, and a DC-DC whose output can be controlled by a control signal and obtains a second voltage from the first voltage.
It comprises a DC converter, a switch means for switching and outputting the output of the power source or the output of the DC-DC converter, and a series regulator connected to the switch means, and a second voltage is outputted via the switch means.
- When the second voltage is obtained from the DC converter, it is used to obtain the third voltage by the series regulator, and when the second voltage is not obtained from the DC-DC converter, the first voltage is obtained from the power source via the switch means. A power supply switching circuit characterized in that a third voltage is obtained by a series regulator using the voltage.
ードにより行なわれ、機器の停止状態ではその出力がＯ
ＦＦとされることを特徴とする実用新案登録請求の範囲
第１項記載の電源切換回路。(2) Output control of the DC-DC converter is performed according to the operating mode of the device, and when the device is stopped, its output is
The power supply switching circuit according to claim 1, which is a FF.
−電源を供給するスイッチがＯＮとなったときはこの
機器の動作モードにかかわらす第３の電圧が供給される
必要のある回路が接続されていることを特徴とする実用
新案登録請求の範囲第２項記載の電源切換回路。(3) The output end of the series regulator is connected to the equipment.
- Utility model registration claim 1, characterized in that a circuit is connected to which a third voltage needs to be supplied regardless of the operating mode of this device when the switch for supplying power is turned on. The power supply switching circuit described in Section 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17848282U JPS5985045U (en) | 1982-11-27 | 1982-11-27 | Power switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17848282U JPS5985045U (en) | 1982-11-27 | 1982-11-27 | Power switching circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5985045U true JPS5985045U (en) | 1984-06-08 |
| JPH0127400Y2 JPH0127400Y2 (en) | 1989-08-16 |
Family
ID=30387489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17848282U Granted JPS5985045U (en) | 1982-11-27 | 1982-11-27 | Power switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5985045U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011010523A (en) * | 2009-06-29 | 2011-01-13 | Fuji Electric Systems Co Ltd | Distributed power supply system, configuration determining method thereof and method for defining printed board pattern thereof |
-
1982
- 1982-11-27 JP JP17848282U patent/JPS5985045U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011010523A (en) * | 2009-06-29 | 2011-01-13 | Fuji Electric Systems Co Ltd | Distributed power supply system, configuration determining method thereof and method for defining printed board pattern thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0127400Y2 (en) | 1989-08-16 |
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