JPS5969646U - Over-discharge prevention circuit for rechargeable batteries - Google Patents
Over-discharge prevention circuit for rechargeable batteriesInfo
- Publication number
- JPS5969646U JPS5969646U JP16483282U JP16483282U JPS5969646U JP S5969646 U JPS5969646 U JP S5969646U JP 16483282 U JP16483282 U JP 16483282U JP 16483282 U JP16483282 U JP 16483282U JP S5969646 U JPS5969646 U JP S5969646U
- Authority
- JP
- Japan
- Prior art keywords
- display element
- transistor
- battery
- resistor
- power supply
- 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
- Protection Of Static Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図は本考案の実施例の具体回路図である。
１は交流電源、２は負荷、Ｒ１は第１の抵抗、Ｒ２は第
２の抵抗、Ｒ３は第３の抵抗、Ｅは電池、Ｑはトランジ
スタ、ＬＥＤは発光ダイオ−−ドを示す。The figure is a specific circuit diagram of an embodiment of the present invention. 1 is an AC power supply, 2 is a load, R1 is a first resistor, R2 is a second resistor, R3 is a third resistor, E is a battery, Q is a transistor, and LED is a light emitting diode.
Claims (1)
て充電する電池と並列に、トランジスタと負荷との直列
回路を接続し、トランジスタと電池との接続点と、ベー
スとの間にトランジスタ駆動用の第２の抵抗を接続する
とともに、該ベースより発光ダイオードのような表示素
子を接地し、前記直流電源を前記表示素子を点灯せしめ
るべく電流を流す第３の抵抗を介して表示素子に接続し
、交流電源が通電されている場合に表示素子を点灯せし
めるべく抵抗値に第３の抵抗を設定し、停電時において
表示素子が消灯状態であって電池よりトランジスタを駆
動できる程度の電流を流すべく抵抗値に第２の抵抗を設
定し、電池電圧が表示素子の順方向降下電圧以下になる
とトランジスタをオフせしめて電池から負荷への電源供
給を停止するようにして成る充電電池の過放電防止回路
。A series circuit of a transistor and a load is connected in parallel with a battery that is charged via a first resistor from a DC power source obtained by rectifying and smoothing an AC power source, and a transistor drive circuit is connected between the connection point of the transistor and the battery and the base. At the same time, a display element such as a light emitting diode is grounded from the base, and the DC power supply is connected to the display element via a third resistor through which a current flows to light up the display element. Then, a third resistor is set to the resistance value so that the display element lights up when the AC power supply is energized, and when the display element is off during a power outage, a current that is sufficient to drive the transistor from the battery is passed. A second resistor is set to the desired resistance value, and when the battery voltage falls below the forward drop voltage of the display element, the transistor is turned off and the power supply from the battery to the load is stopped. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16483282U JPS5969646U (en) | 1982-10-30 | 1982-10-30 | Over-discharge prevention circuit for rechargeable batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16483282U JPS5969646U (en) | 1982-10-30 | 1982-10-30 | Over-discharge prevention circuit for rechargeable batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5969646U true JPS5969646U (en) | 1984-05-11 |
Family
ID=30361274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16483282U Pending JPS5969646U (en) | 1982-10-30 | 1982-10-30 | Over-discharge prevention circuit for rechargeable batteries |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5969646U (en) |
-
1982
- 1982-10-30 JP JP16483282U patent/JPS5969646U/en active Pending
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