JPS6130120U - low voltage power supply circuit - Google Patents
low voltage power supply circuitInfo
- Publication number
- JPS6130120U JPS6130120U JP11340084U JP11340084U JPS6130120U JP S6130120 U JPS6130120 U JP S6130120U JP 11340084 U JP11340084 U JP 11340084U JP 11340084 U JP11340084 U JP 11340084U JP S6130120 U JPS6130120 U JP S6130120U
- Authority
- JP
- Japan
- Prior art keywords
- output
- voltage
- circuit
- output circuit
- resistor
- 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図は本考案による実施例の構成を示す回路図、第２
図は従来の低電圧電源回路の第１の例の主要な構成を示
す回路図、第３図は従来の低電圧電源回路の第２の例の
主要な構成を示す回路図である。
図において、１１，１２，１５．１９は抵抗、１３．１
７はトランジスタ、１４はツエナーダイオード、１６は
可変抵抗、１８は３端子レギュレータ、１９−１．１９
−２は整流回路、２０はトランスである。Fig. 1 is a circuit diagram showing the configuration of an embodiment according to the present invention;
The figure is a circuit diagram showing the main structure of a first example of a conventional low voltage power supply circuit, and FIG. 3 is a circuit diagram showing the main structure of a second example of a conventional low voltage power supply circuit. In the figure, 11, 12, 15.19 are resistances, 13.1
7 is a transistor, 14 is a Zener diode, 16 is a variable resistor, 18 is a 3-terminal regulator, 19-1.19
-2 is a rectifier circuit, and 20 is a transformer.
Claims (1)
し、制御用のトランジスタを介して正の出力電工を発生
する第１の出力回路と、前記トランスの他の巻線から得
られる交流出力を整流して負の出力電圧を発生す乞第２
の出力回路と、該第２の出力回路の出力端子間に抵抗を
介して直列に接続されたツエナーダイオードと、前記第
１の出力回路の０■側と前記第２の出力回路の０■側と
を共通にし、該第１の出力回路の正電圧出力側と該第２
の出力回路の負電圧出力側との間に接続された抵抗に′
より、これ等両端間の出力電圧を分圧する回路と、該分
圧回路により分圧された抵抗の接続点にベースが接続さ
れ、前記ツエナーダイオードと直列抵抗との間の接続点
にエミッタが接続され、コレクタが前記制御用のトラン
ジスタの制御入力側に接続された誤差増幅用のトランジ
スタとからなる低電圧電源回路。a first output circuit that rectifies the alternating current output obtained from the secondary winding of one transformer and generates a positive output electric power through a control transistor; and an alternating current output obtained from the other winding of the transformer. The second step is to rectify the voltage to generate a negative output voltage.
a Zener diode connected in series through a resistor between the output terminals of the second output circuit, the 0■ side of the first output circuit, and the 0■ side of the second output circuit. and the positive voltage output side of the first output circuit and the second output circuit.
′ to the resistor connected between the negative voltage output side of the output circuit of
Therefore, the base is connected to the connection point between the circuit that divides the output voltage between these terminals and the resistor divided by the voltage divider circuit, and the emitter is connected to the connection point between the Zener diode and the series resistor. and a transistor for error amplification, the collector of which is connected to the control input side of the control transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11340084U JPS6130120U (en) | 1984-07-27 | 1984-07-27 | low voltage power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11340084U JPS6130120U (en) | 1984-07-27 | 1984-07-27 | low voltage power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6130120U true JPS6130120U (en) | 1986-02-22 |
Family
ID=30672433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11340084U Pending JPS6130120U (en) | 1984-07-27 | 1984-07-27 | low voltage power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6130120U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS499651A (en) * | 1972-05-29 | 1974-01-28 |
-
1984
- 1984-07-27 JP JP11340084U patent/JPS6130120U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS499651A (en) * | 1972-05-29 | 1974-01-28 |
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