JPH0186437U - - Google Patents
Info
- Publication number
- JPH0186437U JPH0186437U JP18123187U JP18123187U JPH0186437U JP H0186437 U JPH0186437 U JP H0186437U JP 18123187 U JP18123187 U JP 18123187U JP 18123187 U JP18123187 U JP 18123187U JP H0186437 U JPH0186437 U JP H0186437U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- auxiliary
- prevention
- relay contacts
- overvoltage prevention
- 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
- 230000002265 prevention Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
第１図と第２図は本考案の構成を示し、第１図
は主回路構成図、第２図は制御回路ブロツク図で
あり、第３図から第５図は本考案の一実施例を示
し、第３図は主回路構成図、第４図は過電圧防止
回路制御回路図、第５図はタイムチヤートである
。第６図は従来の主回路構成図である。
図面中、１：メインスイツチ、２：ダイオード
全波整流ブリツジ、３：蓄電池部、４：過電圧防
止回路、５：電解コンデンサ、６：インバータ部
、７：制御回路、１１：接点付メインスイツチ、
４４：補助突流防止回路、４５：突流防止回路、
７１：入力電圧検出回路、７２：出力電圧検出回
路、７３：選択回路、７４：操作回路 である。
1 and 2 show the configuration of the present invention, FIG. 1 is a main circuit configuration diagram, FIG. 2 is a control circuit block diagram, and FIGS. 3 to 5 show an embodiment of the present invention. 3 is a main circuit configuration diagram, FIG. 4 is an overvoltage prevention circuit control circuit diagram, and FIG. 5 is a time chart. FIG. 6 is a conventional main circuit configuration diagram. In the drawing, 1: main switch, 2: diode full-wave rectifier bridge, 3: storage battery section, 4: overvoltage prevention circuit, 5: electrolytic capacitor, 6: inverter section, 7: control circuit, 11: main switch with contact,
44: Auxiliary rush current prevention circuit, 45: Rush current prevention circuit,
71: input voltage detection circuit, 72: output voltage detection circuit, 73: selection circuit, 74: operation circuit.
Claims (1)
リレー接点のいずれか一方による開閉スイツチと
補助抵抗の一対からなる補助回路を複数個有する
複助突流防止回路を突流防止抵抗及び半導体素子
もしくは、リレー接点のいずれか一方による短絡
スイツチを並列に接続して成る過電圧防止回路を
ダイオード全波整流ブリツジと電解コンデンサの
間に挿入し、該過電圧防止回路の制御すべく構成
した電圧検出回路と電流検出回路と選択回路とタ
イマー回路及びラツチ回路を具備した操作回路か
ら成る制御回路を付加することを特徴とする無停
電電源装置の過電圧防止回路。 Semiconductor elements such as thyristor elements or
A double auxiliary rush current prevention circuit having a plurality of auxiliary circuits each consisting of an open/close switch using one of the relay contacts and a pair of auxiliary resistors is connected in parallel with the rush current prevention resistor and a semiconductor element or a short circuit switch using one of the relay contacts. an overvoltage prevention circuit consisting of a diode full-wave rectifier bridge and an electrolytic capacitor, and a voltage detection circuit, a current detection circuit, a selection circuit, a timer circuit, and a latch circuit configured to control the overvoltage prevention circuit. An overvoltage prevention circuit for an uninterruptible power supply, characterized by adding a control circuit consisting of a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18123187U JPH0186437U (en) | 1987-11-30 | 1987-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18123187U JPH0186437U (en) | 1987-11-30 | 1987-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0186437U true JPH0186437U (en) | 1989-06-08 |
Family
ID=31472724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18123187U Pending JPH0186437U (en) | 1987-11-30 | 1987-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0186437U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60121924A (en) * | 1983-11-30 | 1985-06-29 | 日本電気株式会社 | Rush current preventng circuit |
-
1987
- 1987-11-30 JP JP18123187U patent/JPH0186437U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60121924A (en) * | 1983-11-30 | 1985-06-29 | 日本電気株式会社 | Rush current preventng circuit |
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