JPS61103717U - - Google Patents
Info
- Publication number
- JPS61103717U JPS61103717U JP18929284U JP18929284U JPS61103717U JP S61103717 U JPS61103717 U JP S61103717U JP 18929284 U JP18929284 U JP 18929284U JP 18929284 U JP18929284 U JP 18929284U JP S61103717 U JPS61103717 U JP S61103717U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- error amplifier
- control transistor
- power supply
- output circuit
- 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)
Description
第１図は本考案の一実施例を示す図、第２図お
よび第３図は従来の直列制御型直流安定化電源回
路をそれぞれ示す図である。
１８……入力電源、１９……負荷抵抗器、２０
……制御用トランジスタ、２１……起動用ツエナ
ーダイオード、２２……誤差増幅器、２３，２４
，２６……抵抗器、２７……ツエナーダイオード
。
FIG. 1 shows an embodiment of the present invention, and FIGS. 2 and 3 show conventional series-controlled DC stabilized power supply circuits, respectively. 18...Input power supply, 19...Load resistor, 20
... Control transistor, 21 ... Zener diode for starting, 22 ... Error amplifier, 23, 24
, 26...Resistor, 27...Zener diode.
Claims (1)
ミツタが直列に接続された制御用トランジスタと
、この制御用トランジスタのベースに出力端子が
接続された誤差増幅器と、この誤差増幅器の一方
の入力端子に接続され、かつ前記出力回路に並列
に接続された分圧回路と、前記誤差増幅器の他方
の入力端子に接続され、かつ前記出力回路に並列
に接続された基準電圧発生回路とを備える直流安
定化電源回路において、前記制御用トランジスタ
のコレクタ−エミツタ間に逆バイアスになるよう
に起動用ツエナーダイオードを接続し、起動時に
は前記起動用ツエナーダイオードが導通し、定常
状態では前記起動用ツエナーダイオードが遮断す
るようにしたことを特徴とする直流安定化電源回
路。 A control transistor whose collector and emitter are connected in series between the input power supply and the output circuit, an error amplifier whose output terminal is connected to the base of this control transistor, and one input terminal of this error amplifier. a voltage dividing circuit connected in parallel to the output circuit; and a reference voltage generation circuit connected to the other input terminal of the error amplifier and connected in parallel to the output circuit. In the circuit, a starting Zener diode is connected so as to be reverse biased between the collector and emitter of the control transistor, and the starting Zener diode is conductive at startup, and is cut off in a steady state. A DC stabilized power supply circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18929284U JPS61103717U (en) | 1984-12-13 | 1984-12-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18929284U JPS61103717U (en) | 1984-12-13 | 1984-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61103717U true JPS61103717U (en) | 1986-07-02 |
Family
ID=30746743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18929284U Pending JPS61103717U (en) | 1984-12-13 | 1984-12-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61103717U (en) |
-
1984
- 1984-12-13 JP JP18929284U patent/JPS61103717U/ja active Pending