JPS582022U - Isolated switching regulator startup circuit - Google Patents
Isolated switching regulator startup circuitInfo
- Publication number
- JPS582022U JPS582022U JP9376581U JP9376581U JPS582022U JP S582022 U JPS582022 U JP S582022U JP 9376581 U JP9376581 U JP 9376581U JP 9376581 U JP9376581 U JP 9376581U JP S582022 U JPS582022 U JP S582022U
- Authority
- JP
- Japan
- Prior art keywords
- switching regulator
- isolated switching
- transistor
- startup circuit
- resistor
- 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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の回路図、第２図は本考案による、絶縁型
スイッチングレギュレータの起動回路の実施例図である
。FIG. 1 is a conventional circuit diagram, and FIG. 2 is an embodiment of a starting circuit for an isolated switching regulator according to the present invention.
Claims (1)
１アース間にプッシュプル接続し、その中点と十Ｂ又は
アース間に絶縁トランスの１次巻線と抵抗とコンデンサ
の直列回路を接続しミ前記プッシュプル接続された一ト
ランジスタを駆動する第３のトランジスタめベースと＋
８間にＷスイッチに連動したスイッチと抵抗とツェナダ
イオードの直列回路を接続し、前記絶縁トランスの２次
巻線より起動電圧を取りだすことを特徴とした絶縁型ス
イッチングレギュレータの起動回路。The first and second transistors with mutually different polarities are
A third transistor which drives the push-pull connected transistor is connected between the middle point and the ground and the primary winding of an isolation transformer, and a series circuit of a resistor and a capacitor. Transistor base and +
A starting circuit for an isolated switching regulator, characterized in that a series circuit of a switch interlocked with a W switch, a resistor, and a Zener diode is connected between 8 and 8, and a starting voltage is taken out from a secondary winding of the insulating transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9376581U JPS582022U (en) | 1981-06-26 | 1981-06-26 | Isolated switching regulator startup circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9376581U JPS582022U (en) | 1981-06-26 | 1981-06-26 | Isolated switching regulator startup circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS582022U true JPS582022U (en) | 1983-01-07 |
Family
ID=29888733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9376581U Pending JPS582022U (en) | 1981-06-26 | 1981-06-26 | Isolated switching regulator startup circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS582022U (en) |
-
1981
- 1981-06-26 JP JP9376581U patent/JPS582022U/en active Pending
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