JPS61141771U - - Google Patents
Info
- Publication number
- JPS61141771U JPS61141771U JP1985025959U JP2595985U JPS61141771U JP S61141771 U JPS61141771 U JP S61141771U JP 1985025959 U JP1985025959 U JP 1985025959U JP 2595985 U JP2595985 U JP 2595985U JP S61141771 U JPS61141771 U JP S61141771U
- Authority
- JP
- Japan
- Prior art keywords
- charging
- circuit
- secondary battery
- switch
- turned
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 4
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Secondary Cells (AREA)
Description
第１図はこの考案の第１の実施例の回路図、第
２図はこの考案の第２の実施例の回路図、第３図
ないし第５図はそれぞれ従来の充電回路の回路図
、第６図は従来例および実施例における各部の電
圧、電流の時間変化を示す図である。
Ｒｅｆ……全波整流器、（充電用直流電源）、
Ｂ……二次電池、ＬＥＤ……発光ダイオード（充
電表示素子）、ＺＤ２……ツエナーダイオード（
第２のスイツチ）、Ｔｒ２……トランジスタ（第
１のスイツチ）、Ｔｒ３……トランジスタ（第１
のスイツチ）、Ｔｒ４……トランジスタ（第２の
スイツチ）。
Fig. 1 is a circuit diagram of a first embodiment of this invention, Fig. 2 is a circuit diagram of a second embodiment of this invention, and Figs. 3 to 5 are circuit diagrams of a conventional charging circuit, respectively. FIG. 6 is a diagram showing temporal changes in voltage and current at various parts in the conventional example and the example. Ref...Full wave rectifier, (DC power supply for charging),
B... Secondary battery, LED... Light emitting diode (charge display element), ZD 2 ... Zener diode (
Tr 2 ... transistor (first switch), Tr 3 ... transistor (first switch), Tr 3 ... transistor (first switch), Tr 3 ... transistor (first switch)
(switch), Tr 4 ...transistor (second switch).
Claims (1)
電回路に付設される充電表示回路であつて、前記
二次電池に充電電流が流れているときにオンとな
る第１のスイツチと、前記二次電池の両端電圧が
ほぼ定常充電状態の電圧値まで回復したときにオ
ンとなる第２のスイツチと、前記第１および第２
のスイツチの直列回路を介して前記二次電池に並
列接続した充電表示素子とを備えた充電表示回路
。 A charging display circuit attached to a charging circuit that charges a secondary battery using a charging DC power source, the circuit comprising: a first switch that is turned on when a charging current is flowing through the secondary battery; a second switch that is turned on when the voltage across the battery recovers to a voltage value in a substantially steady charging state;
and a charge display element connected in parallel to the secondary battery through a series circuit of switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985025959U JPH0512937Y2 (en) | 1985-02-25 | 1985-02-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985025959U JPH0512937Y2 (en) | 1985-02-25 | 1985-02-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61141771U true JPS61141771U (en) | 1986-09-02 |
| JPH0512937Y2 JPH0512937Y2 (en) | 1993-04-05 |
Family
ID=30521518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985025959U Expired - Lifetime JPH0512937Y2 (en) | 1985-02-25 | 1985-02-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0512937Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5043819U (en) * | 1973-08-21 | 1975-05-02 |
-
1985
- 1985-02-25 JP JP1985025959U patent/JPH0512937Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5043819U (en) * | 1973-08-21 | 1975-05-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0512937Y2 (en) | 1993-04-05 |