JPS6485541A - Secondary battery charge control circuit - Google Patents
Secondary battery charge control circuitInfo
- Publication number
- JPS6485541A JPS6485541A JP24120687A JP24120687A JPS6485541A JP S6485541 A JPS6485541 A JP S6485541A JP 24120687 A JP24120687 A JP 24120687A JP 24120687 A JP24120687 A JP 24120687A JP S6485541 A JPS6485541 A JP S6485541A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- charging
- voltage
- timer
- circuit
- 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 abstract 4
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
PURPOSE:To make it possible to perform charging control of a battery having oscillating voltage at a set point of falling voltage of the battery for general use by controlling a timer circuit by detection signal at the close of charging time of the battery. CONSTITUTION:When the charging is commenced, a charging terminal detection circuit 4 and a timer circuit 3 output 'Hi' level, a switch circuit 2 is in a state of 'closed', power supply 1 is connected to a battery 5 to start the charging. In case of battery having oscillating voltage, the charging voltage characteristic peak of the battery until such a time is memorized to the voltage of the battery 5 by a circuit to memorize the peak voltage in possession of the charging terminal detection circuit 4. In other words, when oscillating voltage is lower than the falling V of the charging terminal detection circuit 4, 'Hi' level is outputted and the timer 3 is in a state of resetting, when it is higher than the falling voltage V, 'Lo' level is outputted and the timer 3 operates. After repeating this state, the timer 3 outputs 'Lo' level, the switch circuit 2 is in a state of 'open', the power supply 1 and the battery 5 are cut off and the charging terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24120687A JPS6485541A (en) | 1987-09-25 | 1987-09-25 | Secondary battery charge control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24120687A JPS6485541A (en) | 1987-09-25 | 1987-09-25 | Secondary battery charge control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6485541A true JPS6485541A (en) | 1989-03-30 |
Family
ID=17070780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24120687A Pending JPS6485541A (en) | 1987-09-25 | 1987-09-25 | Secondary battery charge control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6485541A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58144545A (en) * | 1982-02-19 | 1983-08-27 | 三洋電機株式会社 | Battery charging circuit |
| JPS61116938A (en) * | 1984-11-13 | 1986-06-04 | 富士通株式会社 | Nickel cadmium battery charging device |
-
1987
- 1987-09-25 JP JP24120687A patent/JPS6485541A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58144545A (en) * | 1982-02-19 | 1983-08-27 | 三洋電機株式会社 | Battery charging circuit |
| JPS61116938A (en) * | 1984-11-13 | 1986-06-04 | 富士通株式会社 | Nickel cadmium battery charging device |
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