JPS63138885U - - Google Patents
Info
- Publication number
- JPS63138885U JPS63138885U JP3123687U JP3123687U JPS63138885U JP S63138885 U JPS63138885 U JP S63138885U JP 3123687 U JP3123687 U JP 3123687U JP 3123687 U JP3123687 U JP 3123687U JP S63138885 U JPS63138885 U JP S63138885U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- converter
- transformer
- base
- series
- 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
- 230000010355 oscillation Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図はこの考案の実施例である自励発振コン
バータの回路図、第２図はその主要部の波形を模
式的に表した図、第３図は従来の自励発振コンバ
ータの回路図、第４図は第３図に示した回路の主
要部の波形を模式的に表した図である。
Ｑ１―トランジスタ、Ｑ２―トランジスタ（ス
イツチ素子）、Ｅ―逆バイアス電圧発生回路、Ｃ
２―コンデンサ、Ｃ２，Ｒ３―正帰還回路。
Fig. 1 is a circuit diagram of a self-excited oscillation converter that is an embodiment of this invention, Fig. 2 is a diagram schematically representing the waveforms of the main parts, and Fig. 3 is a circuit diagram of a conventional self-oscillation converter. FIG. 4 is a diagram schematically showing waveforms of the main parts of the circuit shown in FIG. 3. Q1-transistor, Q2-transistor (switch element), E-reverse bias voltage generation circuit, C
2-Capacitor, C2, R3-Positive feedback circuit.
Claims (1)
続され、このトランジスタのベースに前記トラン
スの帰還巻線の出力が接続され、前記トランジス
タの発振動作により前記トランスの二次巻線に電
圧を発生する自励発振コンバータにおいて、 前記トランジスタのベースに逆バイアス電圧発
生回路とスイツチ素子からなる直列回路を接続す
るとともに、前記トランジスタと一次巻線の接続
点と前記スイツチ素子の制御端子との間に少なく
ともコンデンサを直列に含む正帰還回路を接続し
たことを特徴とする自励発振コンバータ。[Claims for Utility Model Registration] A transistor is connected in series to the primary winding of the transformer, the output of the feedback winding of the transformer is connected to the base of the transistor, and the secondary winding of the transformer is caused by the oscillation operation of the transistor. In a self-oscillating converter that generates voltage on a line, a series circuit consisting of a reverse bias voltage generating circuit and a switch element is connected to the base of the transistor, and a connection point between the transistor and the primary winding and a control terminal of the switch element are connected to the base of the transistor. A self-excited oscillation converter characterized in that a positive feedback circuit including at least a capacitor in series is connected between the converter and the converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3123687U JPS63138885U (en) | 1987-03-04 | 1987-03-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3123687U JPS63138885U (en) | 1987-03-04 | 1987-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63138885U true JPS63138885U (en) | 1988-09-13 |
Family
ID=30836785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3123687U Pending JPS63138885U (en) | 1987-03-04 | 1987-03-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63138885U (en) |
-
1987
- 1987-03-04 JP JP3123687U patent/JPS63138885U/ja active Pending
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