JPS58174719U - power supply - Google Patents
power supplyInfo
- Publication number
- JPS58174719U JPS58174719U JP7315082U JP7315082U JPS58174719U JP S58174719 U JPS58174719 U JP S58174719U JP 7315082 U JP7315082 U JP 7315082U JP 7315082 U JP7315082 U JP 7315082U JP S58174719 U JPS58174719 U JP S58174719U
- Authority
- JP
- Japan
- Prior art keywords
- voltage side
- capacitor
- side terminal
- power supply
- connect
- 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
- Continuous-Control Power Sources That Use Transistors (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図は本考案の一実施例を示す回路図、第２図は端子
部の電圧変化の状態を示す図である。
３・・・・・・電源変圧器、Ｄ工〜Ｄ、・・・・・・ダ
イオード、７．８・・・・・・端子、Ｑ□〜Ｑ４・・・
・・・トランジスタ、Ｄ５・・・・・・ツェナーダイオ
ード、Ｃ３・・・・・・コンデンサ、９．１１・・・・
・・出力端子、１０・・・・・・共通端子。FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing the state of voltage change at the terminal portion. 3...Power transformer, D~D,...Diode, 7.8...Terminal, Q□~Q4...
...Transistor, D5...Zener diode, C3...Capacitor, 9.11...
...Output terminal, 10...Common terminal.
Claims (1)
源を負荷に供給し、かつ電源遮断時に正電圧側の電力を
負荷に供給するようにした電源装置であって、整流され
た正電圧側の端子にツェナーダイオードのカソードおよ
びコイデンサの一端を接続し、このコンデンサの他端側
にコレクタが接地されたＮＰＮトランジスタのエミッタ
およびＰＮＰトランジスタのエミッタを接続し、前記ツ
ェナーダイオードのアノードを前記ＰＮＰ）ランジスタ
のベースおよび一端が整流された負電圧側の端子に接続
された抵抗の他端に接続し、さらに前記ＰＮＰ トラン
ジスタのコレクタを直接前記負電圧側の端子に接続する
とともに前記ＮＰＮ ）ランジスタのベースを抵抗を介
して前記負電圧側の端子に接続したことを特徴とする電
源装置。A power supply device that supplies power with two positive and negative voltages obtained by rectifying and smoothing the output of a power transformer to the load, and also supplies power on the positive voltage side to the load when the power is cut off. Connect the cathode of a Zener diode and one end of a coil capacitor to the positive voltage side terminal of the capacitor, connect the emitter of an NPN transistor whose collector is grounded and the emitter of a PNP transistor to the other end of the capacitor, and connect the anode of the Zener diode to the other end of the capacitor. The base and one end of the PNP transistor are connected to the other end of a resistor connected to the rectified negative voltage side terminal, and the collector of the PNP transistor is directly connected to the negative voltage side terminal. A power supply device characterized in that a base of a transistor is connected to the negative voltage side terminal via a resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7315082U JPS58174719U (en) | 1982-05-18 | 1982-05-18 | power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7315082U JPS58174719U (en) | 1982-05-18 | 1982-05-18 | power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58174719U true JPS58174719U (en) | 1983-11-22 |
Family
ID=30082675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7315082U Pending JPS58174719U (en) | 1982-05-18 | 1982-05-18 | power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58174719U (en) |
-
1982
- 1982-05-18 JP JP7315082U patent/JPS58174719U/en active Pending
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