JPS5969640U - protection circuit - Google Patents
protection circuitInfo
- Publication number
- JPS5969640U JPS5969640U JP16467082U JP16467082U JPS5969640U JP S5969640 U JPS5969640 U JP S5969640U JP 16467082 U JP16467082 U JP 16467082U JP 16467082 U JP16467082 U JP 16467082U JP S5969640 U JPS5969640 U JP S5969640U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- comparison
- ranges
- power
- 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.)
- Granted
Links
Landscapes
- Emergency Protection Circuit 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
第１図は本考案の保護回路の一実施態様のブロック回路
図、第２図及び第４図は電圧範囲を示す図、第３図は分
圧回路網の他の構成例を示すプロ −ツク回路図
である。
１・・・入力端子、２・・・レギュレータ、３〜９゜１
３、 １４． Ｒ１〜Ｒ４−・・抵抗、Ｉ Ｑ、 ＺＤ
ａ、 ＺＤｂ。
、 ＺＤｓ・・・ツェナ・ダイオード、Ｑ工〜Ｑ７・
・・トランジスタ、Ｌ・・・負荷、ＲＬ・・・リレー、
ＳＷｐ・・・電源スィッチ、ＲＤ・・・リレー駆動回路
、ＲＤＳ・・・リレー駆動信号発生回路、ＶＣＪ・・・
電圧比較判定回路、ＤＩＶ・・・分圧回路網。
。FIG. 1 is a block circuit diagram of one embodiment of the protection circuit of the present invention, FIGS. 2 and 4 are diagrams showing voltage ranges, and FIG. 3 is a block diagram showing another configuration example of the voltage dividing network. It is a circuit diagram. 1...Input terminal, 2...Regulator, 3~9゜1
3, 14. R1~R4-...Resistance, IQ, ZD
a, ZDb. , ZDs...Zena diode, Q engineering ~ Q7.
...transistor, L...load, RL...relay,
SWp...power switch, RD...relay drive circuit, RDS...relay drive signal generation circuit, VCJ...
Voltage comparison/judgment circuit, DIV...voltage dividing circuit network.
.
Claims (1)
れた第１の複数の電圧範囲においては、電源から機器に
対する動作用電力の供給が行なわれないように、また、
前記の電源の電圧が前記した予め定められた第１の複数
の電圧範囲とは異なる予め定められた第２の複数の電圧
範囲においては、電源から機器に対する動作用電力の供
給が行なわれるようにして、電源と機器との何れか電力
もしくは双方のものの保護が行なわれるようにされてい
る保護回路であって、差動対を構成している能動素子の
内の一方の能動素子の制御電極には基準の電圧か与えら
れ、−また、差動対を構成している他方の能動素子の制
御電極には、電源電圧を。−脊圧する分圧回路網からの
比較電圧が与えられて、前記した比較電圧の方が基準電
圧に比べて低いか高いかに対して、開閉素子を開、閉制
御させうるような出力信号を発生させる電圧比較判定回
路と、電源電圧が前記した予め定められた第１の複数の
電圧範囲にあるときには、基準電圧よりも低い比較電圧
を生じさせうるように、また、電源電圧が前記した予め
定められた第２の複数の電圧範囲にあるときには、基準
電圧よりも高い比較電圧を生じさせうるような分圧比と
なされる分店回路網とを備えてなる保護回路。When the voltage of the power source that supplies operating power to the device is within a plurality of predetermined voltage ranges, the power source does not supply operating power to the device;
In a second plurality of predetermined voltage ranges in which the voltage of the power supply is different from the first plurality of predetermined voltage ranges, the power supply supplies operational power to the device. A protection circuit designed to protect either or both of the power supply and the equipment, the control electrode of one of the active elements constituting a differential pair. is supplied with a reference voltage, and the control electrode of the other active element forming the differential pair is supplied with a supply voltage. - A comparison voltage from a voltage dividing network is applied to generate an output signal capable of controlling a switching element to open or close depending on whether the comparison voltage is lower or higher than the reference voltage. A voltage comparison/judgment circuit is provided so that when the power supply voltage is within the first plurality of predetermined voltage ranges, a comparison voltage lower than the reference voltage can be generated. a branch circuit network having a voltage divider ratio such that when in a second plurality of voltage ranges, the voltage division ratio is such that a comparison voltage higher than the reference voltage is generated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16467082U JPS5969640U (en) | 1982-10-31 | 1982-10-31 | protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16467082U JPS5969640U (en) | 1982-10-31 | 1982-10-31 | protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5969640U true JPS5969640U (en) | 1984-05-11 |
| JPH0130850Y2 JPH0130850Y2 (en) | 1989-09-21 |
Family
ID=30360965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16467082U Granted JPS5969640U (en) | 1982-10-31 | 1982-10-31 | protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5969640U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6482788B2 (en) | 2014-08-15 | 2019-03-13 | 八千代工業株式会社 | Crochet and crochet grip body |
-
1982
- 1982-10-31 JP JP16467082U patent/JPS5969640U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0130850Y2 (en) | 1989-09-21 |
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