JPS59126592U - power circuit - Google Patents
power circuitInfo
- Publication number
- JPS59126592U JPS59126592U JP1864983U JP1864983U JPS59126592U JP S59126592 U JPS59126592 U JP S59126592U JP 1864983 U JP1864983 U JP 1864983U JP 1864983 U JP1864983 U JP 1864983U JP S59126592 U JPS59126592 U JP S59126592U
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- switching transistor
- primary winding
- photocoupler
- power circuit
- 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
Landscapes
- Dc-Dc Converters (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図は電源回路の従来例を示す図、第２図は本考案の
電源回路の構成を示す図である。
１・・・・・・トランス、２・・・・・・スイッチング
トランジスタ、４・・・・・・フォトカプラ、７・・・
・・・電圧安定化回路。FIG. 1 is a diagram showing a conventional example of a power supply circuit, and FIG. 2 is a diagram showing the configuration of a power supply circuit according to the present invention. 1...Transformer, 2...Switching transistor, 4...Photocoupler, 7...
...Voltage stabilization circuit.
Claims (1)
１次巻線に接続されたブロッキング発振回路を形成する
スイッチングトランジスタと、トランスの２次巻線の誘
起電圧を１次巻線側の発振回路に帰還させるフォトカプ
ラと、該フォトカプラにより導通制御され前記スイッチ
ングトランジスタのベース電位を制御することにより発
振を制御する制御トランジスタと、該制御トランジスタ
に並列接続したツェナーダイオードで構成したことを特
徴とする電源回路。A transformer having a primary winding and a secondary winding, a switching transistor that forms a blocking oscillation circuit connected to the primary winding of the transformer, and a switching transistor that connects the induced voltage of the secondary winding of the transformer to the primary winding side. A photocoupler that feeds back to the oscillation circuit, a control transistor whose conduction is controlled by the photocoupler and which controls the oscillation by controlling the base potential of the switching transistor, and a Zener diode connected in parallel to the control transistor. Features a power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1864983U JPS59126592U (en) | 1983-02-09 | 1983-02-09 | power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1864983U JPS59126592U (en) | 1983-02-09 | 1983-02-09 | power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59126592U true JPS59126592U (en) | 1984-08-25 |
Family
ID=30149836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1864983U Pending JPS59126592U (en) | 1983-02-09 | 1983-02-09 | power circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59126592U (en) |
-
1983
- 1983-02-09 JP JP1864983U patent/JPS59126592U/en active Pending
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