JPS63137540U - - Google Patents
Info
- Publication number
- JPS63137540U JPS63137540U JP2442987U JP2442987U JPS63137540U JP S63137540 U JPS63137540 U JP S63137540U JP 2442987 U JP2442987 U JP 2442987U JP 2442987 U JP2442987 U JP 2442987U JP S63137540 U JPS63137540 U JP S63137540U
- Authority
- JP
- Japan
- Prior art keywords
- output
- voltage
- constant voltage
- circuit
- terminal
- 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 6
- 230000002265 prevention Effects 0.000 description 1
Description
第１図は、本考案の充電回路の一実施例、第２
図は充電電流と時間との関係を示す図面、第３図
は充電電圧と時間との関係を示す図面である。
主な図番の説明、２…定電圧回路、４…出力端
子、５…帰還端子、６…充電式電池、７…検出用
抵抗、８…放電防止用ダイオード、１２…検出用
トランジスター。
FIG. 1 shows one embodiment of the charging circuit of the present invention, and a second embodiment of the charging circuit of the present invention.
The figure shows the relationship between charging current and time, and FIG. 3 shows the relationship between charging voltage and time. Explanation of main figure numbers, 2... Constant voltage circuit, 4... Output terminal, 5... Feedback terminal, 6... Rechargeable battery, 7... Detection resistor, 8... Discharge prevention diode, 12... Detection transistor.
Claims (1)
端子に出力される直流電圧を定電圧化する定電圧
回路と、該定電圧回路の出力端子に出力される電
圧が検出用抵抗を介して印加される充電式電池と
、前記検出用抵抗の両端の電位差を検出すると共
に該電位差が大のとき導通する検出用トランジス
ターとよりなり、前記検出用トランジスターが導
通状態にあるとき前記定電圧回路の帰還端子に印
加される帰還電圧を高くし、以つて定電圧回路の
出力電圧を低くせしめたことを特徴とする充電回
路。 A constant voltage circuit that constants the DC voltage output to the output terminal by feeding back the output voltage to the feedback terminal, and the voltage output to the output terminal of the constant voltage circuit is applied via a detection resistor. It consists of a rechargeable battery and a detection transistor that detects a potential difference between both ends of the detection resistor and becomes conductive when the potential difference is large, and when the detection transistor is in a conductive state, a feedback terminal of the constant voltage circuit is connected. A charging circuit characterized in that the applied feedback voltage is increased, thereby lowering the output voltage of the constant voltage circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2442987U JPS63137540U (en) | 1987-02-20 | 1987-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2442987U JPS63137540U (en) | 1987-02-20 | 1987-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63137540U true JPS63137540U (en) | 1988-09-09 |
Family
ID=30823649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2442987U Pending JPS63137540U (en) | 1987-02-20 | 1987-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63137540U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5391354A (en) * | 1977-01-19 | 1978-08-11 | Multilab Ab | Charging unit for storage battery recharging |
-
1987
- 1987-02-20 JP JP2442987U patent/JPS63137540U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5391354A (en) * | 1977-01-19 | 1978-08-11 | Multilab Ab | Charging unit for storage battery recharging |