JPS6412443U - - Google Patents
Info
- Publication number
- JPS6412443U JPS6412443U JP10633387U JP10633387U JPS6412443U JP S6412443 U JPS6412443 U JP S6412443U JP 10633387 U JP10633387 U JP 10633387U JP 10633387 U JP10633387 U JP 10633387U JP S6412443 U JPS6412443 U JP S6412443U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- signal
- power
- detection circuit
- 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 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
Landscapes
- Protection Of Static Devices (AREA)
Description
第１図は、本考案の一実施例の回路図、第２図
は第１図の動作を示す波形図、第３図は本考案の
別の実施例の回路図、第４図は本考案の詳細な実
施例の回路図、第５図は第４図の動作を示す波形
図、第６図は電圧検出回路の一実施例の回路図、
第７図は第６図の動作を示す波形図、第８図は蓄
電池の流出電流を変えた場合の蓄電池電圧の時間
特性線図である。
１，２…蓄電池、８…電圧検出回路、９…電圧
低下検出信号、３，４，５…端子、６，７…スイ
ツチ、１６…ＰＮＰトランジスタ、２５…ＮＰＮ
トランジスタ。
Fig. 1 is a circuit diagram of one embodiment of the present invention, Fig. 2 is a waveform diagram showing the operation of Fig. 1, Fig. 3 is a circuit diagram of another embodiment of the present invention, and Fig. 4 is a circuit diagram of the present invention. 5 is a waveform diagram showing the operation of FIG. 4, FIG. 6 is a circuit diagram of an embodiment of the voltage detection circuit,
FIG. 7 is a waveform diagram showing the operation of FIG. 6, and FIG. 8 is a time characteristic diagram of the storage battery voltage when the outflow current of the storage battery is changed. 1, 2... Storage battery, 8... Voltage detection circuit, 9... Voltage drop detection signal, 3, 4, 5... Terminal, 6, 7... Switch, 16... PNP transistor, 25... NPN
transistor.
Claims (1)
３本の接続リードを引き出して正負の電圧を得、
これを電力供給手段として動作する、信号再生装
置、信号記録装置、あるいは信号記録再生装置に
おいて、該蓄電池の電圧が、所定の電圧値よりも
低下したことを検出して電圧低下検出信号を出力
する電圧検出回路と、該電圧検出回路の該電圧低
下検出信号により、該電力の供給をしや断する、
しや断回路を設け、該正負の電圧の流出電流の大
きいほうのいずれか一方の電圧を該電圧検出回路
で検出し、該しや断回路により該電力の供給をし
や断することを特徴とした過放電保護装置。 Three connection leads are pulled out from different terminals of multiple storage batteries connected in series to obtain positive and negative voltages.
In a signal reproducing device, signal recording device, or signal recording and reproducing device that operates using this as a power supply means, it detects that the voltage of the storage battery has decreased below a predetermined voltage value and outputs a voltage drop detection signal. a voltage detection circuit, and the voltage drop detection signal of the voltage detection circuit to cut off the supply of the power;
The present invention is characterized in that a power disconnection circuit is provided, one of the positive and negative voltages having a larger outflow current is detected by the voltage detection circuit, and the power supply is interrupted by the power disconnection circuit. Over discharge protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10633387U JPS6412443U (en) | 1987-07-13 | 1987-07-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10633387U JPS6412443U (en) | 1987-07-13 | 1987-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6412443U true JPS6412443U (en) | 1989-01-23 |
Family
ID=31339744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10633387U Pending JPS6412443U (en) | 1987-07-13 | 1987-07-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6412443U (en) |
-
1987
- 1987-07-13 JP JP10633387U patent/JPS6412443U/ja active Pending
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