JPS6457182A - Battery capacity check circuit - Google Patents
Battery capacity check circuitInfo
- Publication number
- JPS6457182A JPS6457182A JP62214521A JP21452187A JPS6457182A JP S6457182 A JPS6457182 A JP S6457182A JP 62214521 A JP62214521 A JP 62214521A JP 21452187 A JP21452187 A JP 21452187A JP S6457182 A JPS6457182 A JP S6457182A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- residual capacity
- pulse
- switch
- waveform
- 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
- Tests Of Electric Status Of Batteries (AREA)
Abstract
PURPOSE:To detect the residual capacity of a battery without exhausting the battery to display the same, by comparing a preliminarily stored reference voltage pattern with the terminal voltage waveform of a dummy load. CONSTITUTION:A switch 2 is subjected to on/off control by a pulse generating part 4 and a switch control part 5 and, by turning the switch 2 on, a pulse current is supplied to a dummy load 3 from a battery 1 and pulse voltage appears between the terminals of the load 3. This pulse waveform voltage is compared with a preliminarily stored reference voltage pattern in a waveform detection part 6 and the residual capacity of the battery 1 is detected to be displayed on a display part 8 through a display driving part 7. Since the decay of the residual voltage pattern due to the exhaustion of the battery is affected by the kind and residual capacity of the battery and the magnitude of a discharge current, by properly selecting a discharge current value, a discharge time and a discharge cycle corresponding to the kind of the battery, the residual capacity of the battery can be accurately judged without almost exhausting the accumulated electric energy of the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62214521A JPS6457182A (en) | 1987-08-28 | 1987-08-28 | Battery capacity check circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62214521A JPS6457182A (en) | 1987-08-28 | 1987-08-28 | Battery capacity check circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6457182A true JPS6457182A (en) | 1989-03-03 |
Family
ID=16657098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62214521A Pending JPS6457182A (en) | 1987-08-28 | 1987-08-28 | Battery capacity check circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6457182A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100446525B1 (en) * | 1996-06-25 | 2004-11-03 | 삼성전자주식회사 | Device and method for displaying battery capacity with segment units in stepwise manner |
| JP2016090227A (en) * | 2014-10-29 | 2016-05-23 | トヨタ自動車株式会社 | Secondary battery diagnostic apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5298933A (en) * | 1976-02-14 | 1977-08-19 | Aichi Electric Mfg | Detecting device for residual capacity of storage battery |
-
1987
- 1987-08-28 JP JP62214521A patent/JPS6457182A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5298933A (en) * | 1976-02-14 | 1977-08-19 | Aichi Electric Mfg | Detecting device for residual capacity of storage battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100446525B1 (en) * | 1996-06-25 | 2004-11-03 | 삼성전자주식회사 | Device and method for displaying battery capacity with segment units in stepwise manner |
| JP2016090227A (en) * | 2014-10-29 | 2016-05-23 | トヨタ自動車株式会社 | Secondary battery diagnostic apparatus |
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