JPS5843191U - switching power supply circuit - Google Patents
switching power supply circuitInfo
- Publication number
- JPS5843191U JPS5843191U JP13792881U JP13792881U JPS5843191U JP S5843191 U JPS5843191 U JP S5843191U JP 13792881 U JP13792881 U JP 13792881U JP 13792881 U JP13792881 U JP 13792881U JP S5843191 U JPS5843191 U JP S5843191U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- switching power
- circuit
- supply circuit
- transformer
- 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図は自励式スイッチング電源回路の従来例を示す回
路図、第２図は本考案による自励式スイッチング電源回
路の一実施例を示す回路図、第３図は第２図の動作を説
明するための波形図である。
主要部分の符号の説明、２０．２１・・・・・・時定数
回路、Ｑ□、Ｑ２・・・・・・スイッチングトランジス
タ、Ｔ□、Ｔ２・・・・・・トランス。Fig. 1 is a circuit diagram showing a conventional example of a self-excited switching power supply circuit, Fig. 2 is a circuit diagram showing an embodiment of a self-excited switching power supply circuit according to the present invention, and Fig. 3 explains the operation of Fig. 2. FIG. Explanation of symbols of main parts, 20.21...Time constant circuit, Q□, Q2...Switching transistor, T□, T2...Transformer.
Claims (2)
交互にオン・オフせしめてトランスの１次側に流れる電
流の方向を変化させ、このトランスの２次側に発生する
電圧を整流することによって所定直流電圧を出力するス
イッチング電源回路であって、前記トランジスタのベー
ス側に時定数回路を有し、この時定数回路によって前記
トランジスタのオン・オフ動作の周期を制御可能とした
ことを特徴とするスイッチング電源回路。 ・(1) Equipped with multiple transistors, the transistors are alternately turned on and off to change the direction of the current flowing to the primary side of the transformer, and the voltage generated on the secondary side of the transformer is rectified to produce a specified DC current. A switching power supply circuit that outputs a voltage, the switching power supply having a time constant circuit on the base side of the transistor, the time constant circuit making it possible to control the period of on/off operation of the transistor. circuit.・
並列接続されたコンデンサ及び抵抗の直列回路と、前記
コンデンサ及び抵抗の接続点と前記トランジスタのベー
スとの間に接続された波形整形回路とからなることを特
徴とする実用新案登録請求の範囲第１項記載のスイッチ
ング電源回路。(2) The time constant circuit includes a series circuit of a capacitor and a resistor connected in parallel to the primary winding of the transformer, and a waveform connected between the connection point of the capacitor and resistor and the base of the transistor. 2. A switching power supply circuit according to claim 1, comprising a shaping circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13792881U JPS5843191U (en) | 1981-09-17 | 1981-09-17 | switching power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13792881U JPS5843191U (en) | 1981-09-17 | 1981-09-17 | switching power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5843191U true JPS5843191U (en) | 1983-03-23 |
Family
ID=29931175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13792881U Pending JPS5843191U (en) | 1981-09-17 | 1981-09-17 | switching power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5843191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0495379A (en) * | 1990-08-01 | 1992-03-27 | Mitsubishi Electric Corp | Induction heating device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5854873U (en) * | 1981-10-09 | 1983-04-14 | 荒井 利明 | safety baseball cap |
-
1981
- 1981-09-17 JP JP13792881U patent/JPS5843191U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5854873U (en) * | 1981-10-09 | 1983-04-14 | 荒井 利明 | safety baseball cap |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0495379A (en) * | 1990-08-01 | 1992-03-27 | Mitsubishi Electric Corp | Induction heating device |
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