JPS6278042U - - Google Patents
Info
- Publication number
- JPS6278042U JPS6278042U JP16921585U JP16921585U JPS6278042U JP S6278042 U JPS6278042 U JP S6278042U JP 16921585 U JP16921585 U JP 16921585U JP 16921585 U JP16921585 U JP 16921585U JP S6278042 U JPS6278042 U JP S6278042U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- overvoltage detection
- rectifier circuit
- input
- inrush current
- 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 3
- 230000002265 prevention Effects 0.000 claims 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
第１図及び第２図は、本考案の実施例をそれぞ
れ示す回路図である。
１……入力電源、２……限流ヒユーズ、３……
整流器、４……電圧切換えスイツチ、５，６……
サーミスタ、７，８……コンデンサ、９，１０…
…過電圧検知素子、１１……ＤＣ―ＤＣコンバー
タ、１２……双方向性サイリスタ、１３，１４…
…抵抗、１５……ダイオード。
1 and 2 are circuit diagrams showing embodiments of the present invention, respectively. 1... Input power supply, 2... Current limiting fuse, 3...
Rectifier, 4... Voltage selection switch, 5, 6...
Thermistor, 7, 8... Capacitor, 9, 10...
...Overvoltage detection element, 11...DC-DC converter, 12...Bidirectional thyristor, 13, 14...
...Resistor, 15...Diode.
Claims (1)
路を切換える、電圧切替スイツチを有する装置に
於て、電流ヒユーズ等の電流制限素子と、電源投
入時の入力突入電流防止回路と、過電圧検知素子
より成り、過電圧検知素子を突入電流防止回路の
後段に設けたことを特徴とする電圧切換保護回路
。 In devices that have a voltage selector switch that switches between a voltage doubler rectifier circuit and a full-wave rectifier circuit depending on the input voltage, current limiting elements such as current fuses, input inrush current prevention circuits at power-on, and overvoltage detection elements are used. A voltage switching protection circuit characterized in that an overvoltage detection element is provided at a subsequent stage of an inrush current prevention circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16921585U JPS6278042U (en) | 1985-11-05 | 1985-11-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16921585U JPS6278042U (en) | 1985-11-05 | 1985-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6278042U true JPS6278042U (en) | 1987-05-19 |
Family
ID=31102814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16921585U Pending JPS6278042U (en) | 1985-11-05 | 1985-11-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6278042U (en) |
-
1985
- 1985-11-05 JP JP16921585U patent/JPS6278042U/ja active Pending
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