JPS60119835U - Power switching device - Google Patents
Power switching deviceInfo
- Publication number
- JPS60119835U JPS60119835U JP627484U JP627484U JPS60119835U JP S60119835 U JPS60119835 U JP S60119835U JP 627484 U JP627484 U JP 627484U JP 627484 U JP627484 U JP 627484U JP S60119835 U JPS60119835 U JP S60119835U
- Authority
- JP
- Japan
- Prior art keywords
- external power
- input terminal
- power input
- power supply
- switching 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.)
- Pending
Links
Landscapes
- Stand-By Power Supply Arrangements (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図および第２図は本考案に係る電源切換装置の一実
施例を示す各回路構成図であり、第１図は外部電源を接
続しない状態を示し、第２図は外部電源を接続した状態
を示している。
１・・・外部電源、２・・・外部バッテリー、１０・・
・外部入力端子を成すプラグ、１３・・・メカニカルス
イッチ、２１．２２・・・電源出力端子、３１・・・内
蔵バッテリー、５０・・・電圧検出回路、６０・・・ア
ナログ電子スイッチ回路。Figures 1 and 2 are circuit configuration diagrams showing one embodiment of the power supply switching device according to the present invention. Figure 1 shows a state in which an external power supply is not connected, and Figure 2 shows a state in which an external power supply is connected. It shows the condition. 1... External power supply, 2... External battery, 10...
- Plug forming an external input terminal, 13... Mechanical switch, 21.22... Power output terminal, 31... Built-in battery, 50... Voltage detection circuit, 60... Analog electronic switch circuit.
Claims (1)
源入力端子への外部電源の接続により開成される常閉の
メカニカルスイッチと、上記外部電源入力端子に印加さ
れる電源電圧の電圧降下を検出する電圧検出回路と、こ
の電圧検出回路による検出出力に応じて作動するアナロ
グ電子スイッチ回路と、この電子スイッチ回路および上
記メカニカルスイッチを介して上記外部電源入力端子に
内部接続される内蔵バッテリーと、上記外部電源入力端
子に接続された電源出力端子とから成る電源切換装置。Detects an external power input terminal to which an external power supply is connected, a normally closed mechanical switch that is opened by connecting the external power supply to this external power input terminal, and a voltage drop in the power supply voltage applied to the external power input terminal. an analog electronic switch circuit that operates according to the detection output of the voltage detection circuit; a built-in battery that is internally connected to the external power input terminal via the electronic switch circuit and the mechanical switch; A power switching device consisting of a power output terminal connected to an external power input terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP627484U JPS60119835U (en) | 1984-01-23 | 1984-01-23 | Power switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP627484U JPS60119835U (en) | 1984-01-23 | 1984-01-23 | Power switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60119835U true JPS60119835U (en) | 1985-08-13 |
Family
ID=30483564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP627484U Pending JPS60119835U (en) | 1984-01-23 | 1984-01-23 | Power switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60119835U (en) |
-
1984
- 1984-01-23 JP JP627484U patent/JPS60119835U/en active Pending
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