JPS63107015U - - Google Patents
Info
- Publication number
- JPS63107015U JPS63107015U JP20052486U JP20052486U JPS63107015U JP S63107015 U JPS63107015 U JP S63107015U JP 20052486 U JP20052486 U JP 20052486U JP 20052486 U JP20052486 U JP 20052486U JP S63107015 U JPS63107015 U JP S63107015U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- switching
- smoothing
- transistor
- 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
- 238000009499 grossing Methods 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Control Of Electrical Variables (AREA)
Description
第１図は本考案の一実施例を示す電源回路の全
体ブロツク図、第２図は各部電圧の立ち上がり特
性を示す図、第３図はスイツチング回路の効率を
示す図、第４図は従来のスイツチング回路付電源
回路の一例を示す全体ブロツク図、第５図は第４
図に示した電源回路のスイツチング回路の効率を
示す図である。
なお図面に用いた符号において、１……整流・
平滑回路、２……３端子レギユレータ、４……ド
ライブ回路、１２……電源供給ライン、１４……
アースライン、１８……スイツチング回路、２０
……エミツタ端子、２１……コレクタ端子、２２
……ベース端子、２４……コレクタ端子、２５…
…エミツタ端子、２６……ベース端子である。
Figure 1 is an overall block diagram of a power supply circuit showing an embodiment of the present invention, Figure 2 is a diagram showing the voltage rise characteristics of each part, Figure 3 is a diagram showing the efficiency of the switching circuit, and Figure 4 is a diagram of the conventional power supply circuit. An overall block diagram showing an example of a power supply circuit with a switching circuit.
FIG. 3 is a diagram showing the efficiency of the switching circuit of the power supply circuit shown in the figure. In addition, in the symbols used in the drawings, 1... rectification
Smoothing circuit, 2... 3-terminal regulator, 4... Drive circuit, 12... Power supply line, 14...
Earth line, 18...Switching circuit, 20
... Emitter terminal, 21 ... Collector terminal, 22
...Base terminal, 24...Collector terminal, 25...
...emitter terminal, 26...base terminal.
Claims (1)
ると共に、整流・平滑出力が所定レベルを越えた
後に上記安定化回路から負荷に電圧を供給するよ
うにした電源回路において、 上記整流・平滑回路の出力を断続するスイツチ
ング回路と、上記出力の立上りを検出して上記ス
イツチング回路をオンにするドライブ回路とを備
え、 上記スイツチング回路は、上記整流・平滑回路
の一対の出力ラインの一方にコレクタ―エミツタ
が直列に挿入されたスイツチングトランジスタと
、このスイツチングトランジスタのベースと上記
出力ラインの他方との間にコレクタ―エミツタが
結合された制御トランジスタとを具備し、 上記ドライブ回路の出力により上記制御トラン
ジスタをオンにして、上記スイツチングトランジ
スタをオンさせるためにそのベース電流を上記制
御トランジスタを介して流すように構成した電源
回路。[Claims for Utility Model Registration] A power supply that stabilizes the output of a rectifying/smoothing circuit with a stabilizing circuit, and supplies voltage from the stabilizing circuit to a load after the rectifying/smoothing output exceeds a predetermined level. The circuit includes a switching circuit that intermittents the output of the rectifier/smoothing circuit, and a drive circuit that detects the rise of the output and turns on the switching circuit, and the switching circuit connects the pair of the rectifier/smoothing circuits. a switching transistor having a collector-emitter inserted in series with one of the output lines of the switching transistor; and a control transistor having a collector-emitter coupled between the base of the switching transistor and the other of the output lines, A power supply circuit configured to turn on the control transistor by an output of the drive circuit, and to cause its base current to flow through the control transistor in order to turn on the switching transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20052486U JPS63107015U (en) | 1986-12-27 | 1986-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20052486U JPS63107015U (en) | 1986-12-27 | 1986-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63107015U true JPS63107015U (en) | 1988-07-11 |
Family
ID=31163111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20052486U Pending JPS63107015U (en) | 1986-12-27 | 1986-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63107015U (en) |
-
1986
- 1986-12-27 JP JP20052486U patent/JPS63107015U/ja active Pending
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