JPS6038082U - switching power supply - Google Patents
switching power supplyInfo
- Publication number
- JPS6038082U JPS6038082U JP13001283U JP13001283U JPS6038082U JP S6038082 U JPS6038082 U JP S6038082U JP 13001283 U JP13001283 U JP 13001283U JP 13001283 U JP13001283 U JP 13001283U JP S6038082 U JPS6038082 U JP S6038082U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- diode
- winding
- power supply
- switching power
- 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
- Protection Of Static Devices (AREA)
- 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図は従来の自励式スイッチング電源の電気回路接続
図、第２図は本考案に係る自励式スイッチング電源の電
気回路接続図である。
Ｑｌ・・・トランジスタ、Ｔ１・・・変圧器、Ｎ１．Ｎ
２・・・巻線、Ｎ３・・・帰還巻線、Ｃ４・・・コンデ
ンサ、Ｄ６・・・ダイオード。FIG. 1 is an electric circuit connection diagram of a conventional self-excited switching power supply, and FIG. 2 is an electric circuit connection diagram of a self-excited switching power supply according to the present invention. Ql...transistor, T1...transformer, N1. N
2...Winding, N3...Feedback winding, C4...Capacitor, D6...Diode.
Claims (1)
巻線を通して与えられる直流入力をスイッチングするト
ランジスタと、前記巻線とによ、り前記トランジスタの
コレクタ側からベース側に正帰還をかけて該トランジス
タに自励発振動作をさせる帰還巻線とを備えるスイッチ
ング電源において、前記帰還巻線の両端間にダイオード
とコンデンサとの直列接続回路を接続して、前記トラン
ジスタのオフ期間に前記帰還巻線に生じるフライバック
電圧により前記ダイオードを通して前記コンデンサを充
電するトリガ回路を構成すると共に、前記ダイオードと
前記コンデンサとの接続点を、前記トランジスタのベー
ス入力回路に接続し、前記ダイオード、に前記トランジ
スタのエミタ・ベース間逆耐電圧保護機能を持たせたこ
とを特徴とするスイッチング電源。A transformer, a transistor connected in series with one of the windings of the transformer for switching a DC input applied through the winding, and the winding from the collector side to the base side of the transistor. In a switching power supply comprising a feedback winding that applies positive feedback to cause the transistor to perform self-oscillation operation, a series connection circuit of a diode and a capacitor is connected between both ends of the feedback winding to control the off-period of the transistor. A trigger circuit is configured to charge the capacitor through the diode with a flyback voltage generated in the feedback winding, and a connection point between the diode and the capacitor is connected to a base input circuit of the transistor, and the diode, A switching power supply characterized in that the transistor has a reverse withstand voltage protection function between the emitter and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13001283U JPS6038082U (en) | 1983-08-22 | 1983-08-22 | switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13001283U JPS6038082U (en) | 1983-08-22 | 1983-08-22 | switching power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6038082U true JPS6038082U (en) | 1985-03-16 |
Family
ID=30294405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13001283U Pending JPS6038082U (en) | 1983-08-22 | 1983-08-22 | switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6038082U (en) |
-
1983
- 1983-08-22 JP JP13001283U patent/JPS6038082U/en active Pending
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