JPS6257813U - - Google Patents
Info
- Publication number
- JPS6257813U JPS6257813U JP14574285U JP14574285U JPS6257813U JP S6257813 U JPS6257813 U JP S6257813U JP 14574285 U JP14574285 U JP 14574285U JP 14574285 U JP14574285 U JP 14574285U JP S6257813 U JPS6257813 U JP S6257813U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- capacitor
- rectifier circuit
- winding
- converter
- 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
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Electrical Variables (AREA)
- Dc-Dc Converters (AREA)
- Rectifiers (AREA)
Description
第１図は本考案にかかる電源回路の一実施例を
示す回路図、第２図は第１図の回路の動作を説明
する動作特性図、第３図は本考案の他の実施例を
示す回路図、第４図は第３図の回路の動作を説明
する動作特性図、第５図は従来の電源回路の一例
を示す回路図、第６図は第５図の回路の動作を説
明する動作特性図である。
１……整流回路、Ｔ１……コンバータ・トラン
ス、Ｑ２……スイツチング・トランジスタ、Ｑ３
……制御トランジスタ、Ｄ７……整流用ダイオー
ド、Ｃ３，Ｃ４……コンデンサ、Ｒ２，Ｒ４，Ｒ
５……抵抗。
Fig. 1 is a circuit diagram showing one embodiment of the power supply circuit according to the present invention, Fig. 2 is an operational characteristic diagram explaining the operation of the circuit in Fig. 1, and Fig. 3 shows another embodiment of the present invention. A circuit diagram, FIG. 4 is an operating characteristic diagram explaining the operation of the circuit in FIG. 3, FIG. 5 is a circuit diagram showing an example of a conventional power supply circuit, and FIG. 6 is an explanation of the operation of the circuit in FIG. 5. FIG. 1... Rectifier circuit, T 1 ... Converter transformer, Q 2 ... Switching transistor, Q 3
... Control transistor, D 7 ... Rectifying diode, C 3 , C 4 ... Capacitor, R 2 , R 4 , R
5 ...Resistance.
Claims (1)
整流回路と、 この整流回路の出力を平滑する第１のコンデン
サと、 前記第１の整流回路の出力が一端に供給され、
かつ、タツプを有する巻線を備えたコンバータ・
トランスと、 前記第１のコンデンサからの直流電圧が、起動
抵抗を介してベースに供給されるとともに前記コ
ンバータ・トランスの巻線の他端がコレクタに接
続され、エミツタが基準電位点に接続されたスイ
ツチング・トランジスタと、 前記商用交流電源電圧の大小に応じて前記スイ
ツチング・トランジスタのスイツチング動作をオ
フおよびオン状態に制御する制御回路と、 前記コンバータ・トランスのタツプからの電圧
を整流する一方、前記スイツチング・トランジス
タがオフしたとき、前記第１のコンデンサの両端
電圧を前記巻線の一端からタツプ点を介して負荷
に供給する第２の整流回路と、 前記第１のコンデンサに一端が接続され、他端
が前記第２の整流回路の出力端に接続され、前記
スイツチング・トランジスタがオンしたとき第１
のコンデンサの電圧にさらに、前記コンバータ・
トランス巻線のタツプに生じる電圧を積上げて負
荷へ供給するための第２のコンデンサと、を具備
したことを特徴とする電源回路。[Claims for Utility Model Registration] A first rectifier circuit that full-wave rectifies the voltage from a commercial AC power source, a first capacitor that smoothes the output of the rectifier circuit, and one end of the output of the first rectifier circuit. supplied to,
and a converter with a winding having taps.
DC voltage from the transformer and the first capacitor is supplied to the base via a starting resistor, the other end of the winding of the converter transformer is connected to the collector, and the emitter is connected to a reference potential point. a switching transistor; a control circuit that controls the switching operation of the switching transistor to an off and on state depending on the magnitude of the commercial AC power supply voltage; and a control circuit that rectifies the voltage from the tap of the converter transformer while a second rectifier circuit that supplies the voltage across the first capacitor to the load from one end of the winding through a tap point when the transistor is turned off; one end is connected to the output end of the second rectifier circuit, and when the switching transistor is turned on, the first
Furthermore, the voltage of the capacitor of the converter
A power supply circuit comprising: a second capacitor for accumulating voltage generated at the taps of a transformer winding and supplying the accumulated voltage to a load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14574285U JPS6257813U (en) | 1985-09-26 | 1985-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14574285U JPS6257813U (en) | 1985-09-26 | 1985-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6257813U true JPS6257813U (en) | 1987-04-10 |
Family
ID=31057559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14574285U Pending JPS6257813U (en) | 1985-09-26 | 1985-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6257813U (en) |
-
1985
- 1985-09-26 JP JP14574285U patent/JPS6257813U/ja active Pending
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