JPS60119894U - DC/DC converter - Google Patents
DC/DC converterInfo
- Publication number
- JPS60119894U JPS60119894U JP657384U JP657384U JPS60119894U JP S60119894 U JPS60119894 U JP S60119894U JP 657384 U JP657384 U JP 657384U JP 657384 U JP657384 U JP 657384U JP S60119894 U JPS60119894 U JP S60119894U
- Authority
- JP
- Japan
- Prior art keywords
- switching transistor
- input power
- emitter
- transformer
- base
- 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図は従来例を示す回路図、第２図は第１図の入力電
圧に対する損失を示す特性図、第３図は第１図の入力電
圧に対する効率の変化を示す特性図、第４図は本考案の
一実施例を示す回路図、第５図は本考案の他の実施例を
示す回路図、第６図は第４図において入力電圧の変化に
対する起動抵抗の値とスイッチングトランジスタのベー
スに供給される起動電流との関係を示す特性図、第７図
は第５図において入力電圧の変化に対する起動抵抗およ
び起動電流の関係を示す特性図である。
１・・・・・・入力電源端子、２・・・・・・入力電源
端子、３・・・・・・出力端子、４・・・・・・出力端
子、５・・・・・・トランス、６・・・・・・トランジ
スタ、７・・・・・・制御回路、８・・・・・・抵抗器
、９′・・・・・・抵抗器、９・・・・・・起動抵抗、
１０・・・・・・電圧の上昇に対して抵抗値の増加する
素子。
／−′−
−＋ 、 、１
入〃を圧Ｖ／−ガ０’）Fig. 1 is a circuit diagram showing a conventional example, Fig. 2 is a characteristic diagram showing the loss with respect to the input voltage shown in Fig. 1, Fig. 3 is a characteristic diagram showing the change in efficiency with respect to the input voltage shown in Fig. 1, and Fig. 4 is a circuit diagram showing one embodiment of the present invention, FIG. 5 is a circuit diagram showing another embodiment of the present invention, and FIG. 6 is a diagram showing the value of the starting resistance and the base of the switching transistor with respect to changes in input voltage in FIG. 4. FIG. 7 is a characteristic diagram showing the relationship between the starting resistance and the starting current supplied to the input voltage in FIG. 5 with respect to changes in the input voltage. 1...Input power terminal, 2...Input power terminal, 3...Output terminal, 4...Output terminal, 5...Transformer , 6...Transistor, 7...Control circuit, 8...Resistor, 9'...Resistor, 9...Starting resistor ,
10...Element whose resistance value increases as the voltage increases. /-'- -+ , , 1 input pressure V/-ga 0')
Claims (1)
イッチングトランジスタのコレクタに接続され、前記ス
イッチングトランジスタのエミッタは前記入力電源端子
の他方に接続され、前記スイッチングトランジスタのベ
ース、エミッタ間に制御回路が接続され、前記スイッチ
ングトランジスタのベースは抵抗器を介して前記トラン
スのベース巻線の一端に接続され、その他端は前記スイ
ッチングトランジスタのエミッタに接続され、前記スイ
ッチングトランジスタの不一スと前記入力電源端子の一
方との間に、前記入力電源端子に印加される入力電圧の
上昇に対して抵抗値の増加する手段が接続され、前記ト
ランスの出力巻線が出力端子に接続されていることを特
徴とするＤＣ−ＤＣコンバータ。One of the input power terminals is connected to the collector of the switching transistor via the input winding of the transformer, the emitter of the switching transistor is connected to the other input power terminal, and a control circuit is connected between the base and emitter of the switching transistor. is connected, the base of the switching transistor is connected to one end of the base winding of the transformer via a resistor, and the other end is connected to the emitter of the switching transistor, so that the unbalance of the switching transistor and the input power source are connected to each other. A means for increasing the resistance value in response to an increase in the input voltage applied to the input power supply terminal is connected between one of the terminals, and an output winding of the transformer is connected to the output terminal. DC-DC converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP657384U JPS60119894U (en) | 1984-01-20 | 1984-01-20 | DC/DC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP657384U JPS60119894U (en) | 1984-01-20 | 1984-01-20 | DC/DC converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60119894U true JPS60119894U (en) | 1985-08-13 |
Family
ID=30484139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP657384U Pending JPS60119894U (en) | 1984-01-20 | 1984-01-20 | DC/DC converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60119894U (en) |
-
1984
- 1984-01-20 JP JP657384U patent/JPS60119894U/en active Pending
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