JPH0260443U - - Google Patents
Info
- Publication number
- JPH0260443U JPH0260443U JP13971888U JP13971888U JPH0260443U JP H0260443 U JPH0260443 U JP H0260443U JP 13971888 U JP13971888 U JP 13971888U JP 13971888 U JP13971888 U JP 13971888U JP H0260443 U JPH0260443 U JP H0260443U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- overvoltage protection
- protection circuit
- switching regulator
- 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
- 230000001629 suppression Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案による過電圧保護回路の一実施
例を示す結線図、第２図は従来の過電圧保護回路
の一例を示す結線図である。
６……電流抑制回路、７……ブリツジ整流回路
、８……過電圧保護回路、９……電源端子、１２
……電流抑制抵抗、１３……トライアツク、１７
ｂ，１７ｃ……リレー接点。
FIG. 1 is a wiring diagram showing an embodiment of an overvoltage protection circuit according to the present invention, and FIG. 2 is a wiring diagram showing an example of a conventional overvoltage protection circuit. 6... Current suppression circuit, 7... Bridge rectifier circuit, 8... Overvoltage protection circuit, 9... Power supply terminal, 12
...Current suppression resistor, 13...Triack, 17
b, 17c...Relay contact.
Claims (1)
制抵抗と開閉素子との並列回路からなる電流抑制
回路を介してブリツジ整流回路に印加し、このブ
リツジ整流回路の出力でスイツチングレギユレー
タを駆動するスイツチングレギユレータ電源の過
電圧保護回路において、前記交流電源の過電圧を
検出し、この検出信号で前記開閉素子を制御する
接点を有する過電圧保護回路を設けたことを特徴
とするスイツチングレギユレータ電源の過電圧保
護回路。 A switch that applies AC power from a power supply terminal to a bridge rectifier circuit through a current suppression circuit consisting of a parallel circuit of a current suppression resistor with a temperature fuse and a switching element, and drives a switching regulator with the output of this bridge rectification circuit. A switching regulator power supply characterized in that an overvoltage protection circuit for a switching regulator power supply is provided with an overvoltage protection circuit having a contact that detects an overvoltage of the AC power supply and controls the switching element using this detection signal. overvoltage protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13971888U JPH0260443U (en) | 1988-10-26 | 1988-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13971888U JPH0260443U (en) | 1988-10-26 | 1988-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0260443U true JPH0260443U (en) | 1990-05-02 |
Family
ID=31403240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13971888U Pending JPH0260443U (en) | 1988-10-26 | 1988-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0260443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014150667A (en) * | 2013-02-01 | 2014-08-21 | Brother Ind Ltd | Power-supply system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5678330A (en) * | 1979-11-29 | 1981-06-27 | Fuji Electrochemical Co Ltd | Rush current limiter circuit |
| JPS6244638B2 (en) * | 1979-10-30 | 1987-09-21 | Toshiba Kk |
-
1988
- 1988-10-26 JP JP13971888U patent/JPH0260443U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6244638B2 (en) * | 1979-10-30 | 1987-09-21 | Toshiba Kk | |
| JPS5678330A (en) * | 1979-11-29 | 1981-06-27 | Fuji Electrochemical Co Ltd | Rush current limiter circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014150667A (en) * | 2013-02-01 | 2014-08-21 | Brother Ind Ltd | Power-supply system |