JPS5913087U - switching power supply - Google Patents
switching power supplyInfo
- Publication number
- JPS5913087U JPS5913087U JP10765482U JP10765482U JPS5913087U JP S5913087 U JPS5913087 U JP S5913087U JP 10765482 U JP10765482 U JP 10765482U JP 10765482 U JP10765482 U JP 10765482U JP S5913087 U JPS5913087 U JP S5913087U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- power supply
- resistor
- output terminal
- 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図および第２図は従来の代表的なスイッチング電源
装置の構成を部分的にブロックで示した回路図、第３図
は本考案によるスイッチング電源装置の一実施例の構成
を部分的にブロックで示した回路図、第４図は同じくス
イッチング電源装置に突入電流防止回路を設けた回路図
である。
１、 ２． ６． ７・・・・・・端子、３． ５．
５０・・・・・・変圧器、４． １２−−−−−−トラ
ンジスタ、８，１１・・・・・・抵抗、９・・曲ツェナ
ーダイオード、１０． ２０゜３０．５０・・・・・・
直流化回路、４０・・・・・・制御回路。Figures 1 and 2 are circuit diagrams partially showing the configuration of a typical conventional switching power supply in block form, and Figure 3 is a partial block diagram showing the configuration of an embodiment of the switching power supply according to the present invention. The circuit diagram shown in FIG. 4 is also a circuit diagram in which an inrush current prevention circuit is provided in a switching power supply device. 1, 2. 6. 7...Terminal, 3. 5.
50...Transformer, 4. 12---Transistor, 8, 11... Resistor, 9... Curved Zener diode, 10. 20°30.50...
DC conversion circuit, 40...control circuit.
Claims (1)
直流電圧を出力する第１の直流化回路と、制御回路によ
ってオン、オフ制御されるスイッチング素子と、補助巻
線を有し、−次巻線が前記スイッチング素子を介して前
記第１の直流化回路の出力端子間に接続される変圧器と
、第１の抵抗および電圧調整素子の直列回路でなり、こ
の直列回路の両端を前記第１の直流化回路の出力端子間
に接続することによって、この第１の抵抗およヒ電圧調
整素子の接続点に一定の電圧を発生させる定電圧回路と
、前記変圧器の補助巻線に誘起された゛ 電圧と
整流し、この整流された電圧を平滑して直流電圧を出力
するとともに、その負出力端子が前記第１の直流化回路
の負出力端子および前記制御回路の負電源端子にそれぞ
れ接続された第２の直流化回路と、ベースが前記第１の
抵抗および電圧調整素子の接続点に、コレクタが第２の
抵抗を介して前記第１の直流化回路の正出力端子に、工
迦ツタが前記第２の直流化回路の正出力端子および
。 前記制御回路の正電源端子にそれぞれ接続されたトラン
ジスタとを具備したことを特徴とするスイッチング電源
装置。[Claims for Utility Model Registration] A first DC conversion circuit that rectifies an AC power supply voltage, smoothes the rectified voltage, and outputs a DC voltage, and a switching element that is controlled on and off by a control circuit; The transformer has an auxiliary winding, and the negative winding is connected between the output terminals of the first DC converting circuit via the switching element, and a series circuit of a first resistor and a voltage regulating element. , a constant voltage circuit that generates a constant voltage at the connection point of the first resistor and the voltage adjustment element by connecting both ends of the series circuit between the output terminals of the first DC conversion circuit; The voltage induced in the auxiliary winding of the transformer is rectified, and this rectified voltage is smoothed to output a DC voltage, and its negative output terminal is connected to the negative output terminal of the first DC conversion circuit and the DC voltage. A second direct current converting circuit connected to the negative power supply terminal of the control circuit, a base connected to the connection point of the first resistor and the voltage adjustment element, and a collector connected to the first direct current converting circuit via the second resistor. A metal ivy is connected to the positive output terminal of the second DC converting circuit and the positive output terminal of the circuit.
. A switching power supply device comprising: transistors respectively connected to positive power supply terminals of the control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10765482U JPS5913087U (en) | 1982-07-17 | 1982-07-17 | switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10765482U JPS5913087U (en) | 1982-07-17 | 1982-07-17 | switching power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5913087U true JPS5913087U (en) | 1984-01-26 |
Family
ID=30251460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10765482U Pending JPS5913087U (en) | 1982-07-17 | 1982-07-17 | switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5913087U (en) |
-
1982
- 1982-07-17 JP JP10765482U patent/JPS5913087U/en active Pending
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