JPS62146227U - - Google Patents
Info
- Publication number
- JPS62146227U JPS62146227U JP2916886U JP2916886U JPS62146227U JP S62146227 U JPS62146227 U JP S62146227U JP 2916886 U JP2916886 U JP 2916886U JP 2916886 U JP2916886 U JP 2916886U JP S62146227 U JPS62146227 U JP S62146227U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- supply voltage
- voltage detection
- notifying
- consumed
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Power Sources (AREA)
- Calculators And Similar Devices (AREA)
Description
図面は本考案の一実施例を示すもので、第１図
は回路構成を示すブロツク図、第２図は電池の消
耗に伴う端子電圧の変化特性を示す図である。
１１……制御部、１２……ＲＯＭ、１３……Ｒ
ＡＭ、１４……フロツピデイスク部、１５……コ
ネクタ、１６……電池、１７ａ，１７ｂ……電源
ライン、１８……レギユレータ、１９……第１電
圧検出部、２０……第２電圧検出部、２１，２２
……ラツチ回路、２３，２４……ＬＥＤ駆動回路
、２５，２６……ＬＥＤ。
The drawings show one embodiment of the present invention, and FIG. 1 is a block diagram showing the circuit configuration, and FIG. 2 is a diagram showing the change characteristics of the terminal voltage as the battery wears down. 11...control unit, 12...ROM, 13...R
AM, 14...Floppy disk unit, 15...Connector, 16...Battery, 17a, 17b...Power line, 18...Regulator, 19...First voltage detection section, 20...Second voltage detection section, 21 ,22
... Latch circuit, 23, 24 ... LED drive circuit, 25, 26 ... LED.
Claims (1)
圧検出回路において、動作中の負荷に拘らず最大
負荷時の電源電圧を検出する電圧検出手段と、こ
の手段により検出した電源電圧が第１の設定レベ
ル以下に低下した際に上記電源が消耗したことを
報知する第１の報知手段と、上記電圧検出手段に
より検出した電源電圧が第２の設定レベル以下に
低下した際に上記電源がシステムの動作不可能に
至るまで消耗したことを報知する第２の報知手段
とを具備したことを特徴とする電源電圧検出回路
。 In a power supply voltage detection circuit in a small electronic device using a battery as a power source, there is provided a voltage detection means for detecting the power supply voltage at maximum load regardless of the operating load, and a power supply voltage detected by the means is below a first set level. a first notification means for notifying that the power supply has been exhausted when the power supply voltage has dropped to a second set level; 1. A power supply voltage detection circuit comprising: a second notification means for notifying that the power supply voltage has been consumed to the point where the power supply voltage has been consumed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2916886U JPS62146227U (en) | 1986-03-03 | 1986-03-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2916886U JPS62146227U (en) | 1986-03-03 | 1986-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62146227U true JPS62146227U (en) | 1987-09-16 |
Family
ID=30832814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2916886U Pending JPS62146227U (en) | 1986-03-03 | 1986-03-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62146227U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01267710A (en) * | 1988-04-20 | 1989-10-25 | Topcon Corp | Data processor |
| JPH04361316A (en) * | 1991-06-10 | 1992-12-14 | Canon Inc | Electronic equipment |
| JPH05289784A (en) * | 1992-03-13 | 1993-11-05 | Internatl Business Mach Corp <Ibm> | Battery-driven computer and battery power monitor method for battery-driven computer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55136818A (en) * | 1979-04-11 | 1980-10-25 | Nippon Electric Co | Power voltage drop detecting circuit |
| JPS60176125A (en) * | 1984-02-22 | 1985-09-10 | Matsushita Electric Ind Co Ltd | Power supply voltage check circuit of microcomputer |
| JPS6115533A (en) * | 1984-06-29 | 1986-01-23 | 株式会社東芝 | Battery checking device |
-
1986
- 1986-03-03 JP JP2916886U patent/JPS62146227U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55136818A (en) * | 1979-04-11 | 1980-10-25 | Nippon Electric Co | Power voltage drop detecting circuit |
| JPS60176125A (en) * | 1984-02-22 | 1985-09-10 | Matsushita Electric Ind Co Ltd | Power supply voltage check circuit of microcomputer |
| JPS6115533A (en) * | 1984-06-29 | 1986-01-23 | 株式会社東芝 | Battery checking device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01267710A (en) * | 1988-04-20 | 1989-10-25 | Topcon Corp | Data processor |
| JPH04361316A (en) * | 1991-06-10 | 1992-12-14 | Canon Inc | Electronic equipment |
| JPH05289784A (en) * | 1992-03-13 | 1993-11-05 | Internatl Business Mach Corp <Ibm> | Battery-driven computer and battery power monitor method for battery-driven computer |