JPS61141990U - - Google Patents
Info
- Publication number
- JPS61141990U JPS61141990U JP2281085U JP2281085U JPS61141990U JP S61141990 U JPS61141990 U JP S61141990U JP 2281085 U JP2281085 U JP 2281085U JP 2281085 U JP2281085 U JP 2281085U JP S61141990 U JPS61141990 U JP S61141990U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- power supply
- main power
- transformer
- switching element
- 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
- 238000004804 winding Methods 0.000 claims 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案になる電源回路の一実施例を示
す回路図、第２図は従来の電源回路の回路図であ
る。
１…電源プラグ、２…主電源スイツチ、３…ブ
リツジ型整流回路、４…平滑用コンデンサ（整流
コンデンサ）、５…スイツチングトランス（出力
トランス）、６…スイツチング素子（パワートラ
ンジスタ）、７…ドライブトランス、８…ドライ
ブトランジスタ、１７…放電抵抗、１８…放電用
スイツチ。
FIG. 1 is a circuit diagram showing an embodiment of the power supply circuit according to the present invention, and FIG. 2 is a circuit diagram of a conventional power supply circuit. 1...Power plug, 2...Main power switch, 3...Bridge type rectifier circuit, 4...Smoothing capacitor (rectifier capacitor), 5...Switching transformer (output transformer), 6...Switching element (power transistor), 7...Drive Transformer, 8... Drive transistor, 17... Discharge resistor, 18... Discharge switch.
Claims (1)
て得られる直流電圧の出力端子間に、トランスの
１次巻線とスイツチング素子とを直列に接続し、
前記スイツチング素子のスイツチング動作により
前記トランスの２次巻線より所定の直流出力電圧
を取り出すよう構成した電源回路において、前記
整流回路の出力端子間に放電抵抗とスイツチとを
直列に接続し、かつ、このスイツチを前記主電源
スイツチの導通に連動して遮断され前記主電源ス
イツチの遮断に連動して導通されるようにしたこ
とを特徴とする電源回路。 The primary winding of the transformer and the switching element are connected in series between the output terminals of the DC voltage obtained from the AC power supply via the main power switch and the rectifier circuit,
In a power supply circuit configured to extract a predetermined DC output voltage from a secondary winding of the transformer by switching operation of the switching element, a discharge resistor and a switch are connected in series between the output terminals of the rectifier circuit, and A power supply circuit characterized in that the switch is cut off in conjunction with the conduction of the main power switch and is made conductive in conjunction with the cutoff of the main power switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2281085U JPS61141990U (en) | 1985-02-20 | 1985-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2281085U JPS61141990U (en) | 1985-02-20 | 1985-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61141990U true JPS61141990U (en) | 1986-09-02 |
Family
ID=30515456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2281085U Pending JPS61141990U (en) | 1985-02-20 | 1985-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61141990U (en) |
-
1985
- 1985-02-20 JP JP2281085U patent/JPS61141990U/ja active Pending
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