JPH01142883U - - Google Patents
Info
- Publication number
- JPH01142883U JPH01142883U JP3930488U JP3930488U JPH01142883U JP H01142883 U JPH01142883 U JP H01142883U JP 3930488 U JP3930488 U JP 3930488U JP 3930488 U JP3930488 U JP 3930488U JP H01142883 U JPH01142883 U JP H01142883U
- Authority
- JP
- Japan
- Prior art keywords
- load state
- battery
- held
- battery voltage
- low
- 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 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Description
第１図はこの考案の一実施例を示す図、第２図
は従来の電池寿命検出回路を示す図である。
図において、１は電池の電圧源、２は電池の内
部抵抗、３は高負荷、４はスイツチ、７は可変抵
抗、８はコンパレータ、１０は低負荷、１１はダ
イオード、１２はキヤパシタである。なお、図中
、同一または相当する部分には同一符号を付して
示してある。
FIG. 1 is a diagram showing an embodiment of this invention, and FIG. 2 is a diagram showing a conventional battery life detection circuit. In the figure, 1 is a battery voltage source, 2 is an internal resistance of the battery, 3 is a high load, 4 is a switch, 7 is a variable resistor, 8 is a comparator, 10 is a low load, 11 is a diode, and 12 is a capacitor. In addition, in the drawings, the same or corresponding parts are denoted by the same reference numerals.
Claims (1)
多い高負荷の状態とを交互に繰り返して動作する
装置に用いられる電池の寿命を検出する回路にお
いて、低負荷の状態の電池電圧を測定し保持する
第１の手段と、高負荷時の電池電圧と前記第１の
手段が保持する電圧とを比較して、その電位差が
一定値以上になつたとことを検出する手段とを備
えたことを特徴とする電池寿命検出回路。 In a circuit that detects the life of a battery used in a device that operates by alternating between a low load state with low power consumption and a high load state with high current consumption, the battery voltage is measured and held in a low load state. and means for comparing the battery voltage under high load with the voltage held by the first means and detecting that the potential difference has exceeded a certain value. Battery life detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3930488U JPH01142883U (en) | 1988-03-25 | 1988-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3930488U JPH01142883U (en) | 1988-03-25 | 1988-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01142883U true JPH01142883U (en) | 1989-09-29 |
Family
ID=31265814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3930488U Pending JPH01142883U (en) | 1988-03-25 | 1988-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01142883U (en) |
-
1988
- 1988-03-25 JP JP3930488U patent/JPH01142883U/ja active Pending