JPS617286U - DC-DC converter - Google Patents
DC-DC converterInfo
- Publication number
- JPS617286U JPS617286U JP8851684U JP8851684U JPS617286U JP S617286 U JPS617286 U JP S617286U JP 8851684 U JP8851684 U JP 8851684U JP 8851684 U JP8851684 U JP 8851684U JP S617286 U JPS617286 U JP S617286U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- base
- converter
- base current
- emitter
- 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図は本考案の一実施例を示す回路図、第２図は従来
方式のＤＣ − ＤＣコンバータの回路図である。
１・・・・・・主トランジスタ、３・・・・・・ベース
抵抗、４，６・・・・・・従トランジスタ、５・・・・
・・制御部、７・・・・・・抵抗、８・・・・・・定電
圧ダイオード、■１・・・・・・入力（直流）電圧、ｖ
２・・・・・・出力直流電圧、ｉＢ ｌ・・・・・・ベ
ース電流、Ｒ３・・・・・・抵抗、■ｚ・・・・・・ツ
エナ電圧。FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a circuit diagram of a conventional DC-DC converter. 1...Main transistor, 3...Base resistance, 4, 6...Sub transistor, 5...
...Control unit, 7...Resistor, 8... Constant voltage diode, ■1... Input (DC) voltage, v
2...Output DC voltage, iBl...Base current, R3...Resistance, ■z...Zena voltage.
Claims (2)
側が前記直流入力電源側となるようにエミツタ・コレク
タを接続してなる第１のトランジスタ、前記直流入力電
源の他方のラインと第１のトランジスタのベース間に設
けられ第１のトランズスタのベース電流を継続開閉する
ベース電流開閉手段を備え、第１のトランジスタのコレ
クタと前記他方のライン間に生ずる直流電圧を外部に供
給するようにしたＤＣ−ＤＣコンバータにおいて、前記
ベース電流開閉手段が閉となったとき、第１のトランジ
スタのベースＮ．流を所定の値に制限するベース電流制
限手段を設けたことを特徴とするＤＣ−ＤＣコンバータ
。(1) A first transistor having an emitter and collector connected in series with one line of the DC input power source such that the emitter side is on the side of the DC input power source, the other line of the DC input power source and the first transistor. The base current switching means is provided between the bases of the transistors to continuously open and close the base current of the first transistor, and the direct current voltage generated between the collector of the first transistor and the other line is supplied to the outside. In the DC-DC converter, when the base current switching means is closed, the base N. of the first transistor is closed. A DC-DC converter comprising base current limiting means for limiting current to a predetermined value.
コンバータにおいて前記ベース電流開閉手段は、第２の
トランジスタと抵抗とを備え、第２のトランジスタのエ
ミツタΦコレクタ及び前記抵抗に第１のトランジスタの
ベース’Ｉ流が直列に通ずるようにするとともに、前記
ベース電流制限手段は、第３のトランジスタと、第３の
トランジスタのベース、前記他方のライン間の電圧を一
定に維持する手段とを備え、第３のトランジスタは少′
くともそのエミッタ側に前記抵抗が置かれ、そのエミツ
タ・コレクタを介して第１のトランジスタのベース電流
を通ずるように設けられたことを特徴とするＤＣ−ＤＣ
コンバータ。(2) ■-DC stated in paragraph 1 of the claims for utility model registration
In the converter, the base current switching means includes a second transistor and a resistor, and allows the base 'I current of the first transistor to pass in series to the emitter Φ collector of the second transistor and the resistor, and The base current limiting means includes a third transistor, and means for maintaining a constant voltage between the base of the third transistor and the other line, and the third transistor has a low voltage.
The DC-DC is characterized in that the resistor is placed at least on its emitter side, and is provided so that the base current of the first transistor passes through its emitter-collector.
converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8851684U JPS617286U (en) | 1984-06-14 | 1984-06-14 | DC-DC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8851684U JPS617286U (en) | 1984-06-14 | 1984-06-14 | DC-DC converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS617286U true JPS617286U (en) | 1986-01-17 |
Family
ID=30641731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8851684U Pending JPS617286U (en) | 1984-06-14 | 1984-06-14 | DC-DC converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS617286U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55123234A (en) * | 1979-03-16 | 1980-09-22 | Hitachi Ltd | Transistor switch circuit |
| JPS56143023A (en) * | 1980-04-08 | 1981-11-07 | Matsushita Electric Ind Co Ltd | Power supply circuit |
| JPS58224561A (en) * | 1982-06-21 | 1983-12-26 | Sharp Corp | Switching type constant-voltage circuit |
| JPS5989573A (en) * | 1982-10-04 | 1984-05-23 | フリートマン ウント マイアー アクチェンゲゼルシャフト | Electronic switch unit |
-
1984
- 1984-06-14 JP JP8851684U patent/JPS617286U/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55123234A (en) * | 1979-03-16 | 1980-09-22 | Hitachi Ltd | Transistor switch circuit |
| JPS56143023A (en) * | 1980-04-08 | 1981-11-07 | Matsushita Electric Ind Co Ltd | Power supply circuit |
| JPS58224561A (en) * | 1982-06-21 | 1983-12-26 | Sharp Corp | Switching type constant-voltage circuit |
| JPS5989573A (en) * | 1982-10-04 | 1984-05-23 | フリートマン ウント マイアー アクチェンゲゼルシャフト | Electronic switch unit |
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