JPS62185493U - - Google Patents
Info
- Publication number
- JPS62185493U JPS62185493U JP7179986U JP7179986U JPS62185493U JP S62185493 U JPS62185493 U JP S62185493U JP 7179986 U JP7179986 U JP 7179986U JP 7179986 U JP7179986 U JP 7179986U JP S62185493 U JPS62185493 U JP S62185493U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- output voltage
- converter
- capacitor
- output
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Dc-Dc Converters (AREA)
Description
第１図、第２図はそれぞれ本考案によるＤＣ―
ＤＣコンバータの実施例を示し、第１図はホトカ
プラを２個用いた結線図、第２図は１個のホトカ
プラを電圧制御回路と過電流保護回路に共用した
結線図、第３図は従来のＤＣ―ＤＣコンバータの
一例を示す結線図、第４図は従来例と本実施例と
の特性の相違を示す電圧電流特性曲線図である。
２：変圧器、２ａ：一次コイル、２ｃ：二次コ
イル、１７：出力コンデンサ、１１，１２：ホト
カプラ、２９：駆動コンデンサ。
Figures 1 and 2 are DC--
An example of a DC converter is shown. Fig. 1 is a wiring diagram using two photocouplers, Fig. 2 is a wiring diagram in which one photocoupler is shared for the voltage control circuit and overcurrent protection circuit, and Fig. 3 is a wiring diagram using a conventional one. A wiring diagram showing an example of a DC-DC converter, and FIG. 4 is a voltage-current characteristic curve diagram showing differences in characteristics between a conventional example and this embodiment. 2: Transformer, 2a: Primary coil, 2c: Secondary coil, 17: Output capacitor, 11, 12: Photocoupler, 29: Drive capacitor.
Claims (1)
ジスタを接続し、このスイツチングトランジスタ
により一次コイルに断続直流電流を流してこの変
圧器の二次コイルに誘起する電圧の半波で出力コ
ンデンサを充電し、この出力コンデンサの電圧を
負荷に供給し、二次側に接続された電圧制御回路
と過電流保護回路からの検出信号を一次側に帰還
してスイツチングトランジスタを制御し出力電圧
を定電圧化するＤＣ―ＤＣコンバータにおいて、
前記出力コンデンサを充電する二次側出力電圧と
逆相の半波電圧で充電される駆動コンデンサを備
え、この駆動コンデンサの充電電圧で前記過電流
保護回路を駆動することを特徴とするＤＣ―ＤＣ
コンバータ。 (2) 実用新案登録請求の範囲第１項記載のＤＣ
―ＤＣコンバータにおいて、出力電圧制御回路の
ホトカプラが過電流保護回路のホトカプラと共用
されていることを特徴とするＤＣ―ＤＣコンバー
タ。[Claims for Utility Model Registration] (1) A switching transistor is connected to the primary coil of a transformer, and the voltage induced in the secondary coil of the transformer by passing an intermittent direct current through the primary coil through the switching transistor. The output capacitor is charged with a half-wave of In the DC-DC converter that controls the output voltage and makes the output voltage constant,
The DC-DC is characterized in that it includes a drive capacitor that is charged with a half-wave voltage that is in reverse phase with the secondary output voltage that charges the output capacitor, and that the overcurrent protection circuit is driven by the charging voltage of the drive capacitor.
converter. (2) DC stated in Paragraph 1 of Claims for Utility Model Registration
- A DC-DC converter characterized in that the photocoupler of the output voltage control circuit is shared with the photocoupler of the overcurrent protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7179986U JPH043590Y2 (en) | 1986-05-13 | 1986-05-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7179986U JPH043590Y2 (en) | 1986-05-13 | 1986-05-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62185493U true JPS62185493U (en) | 1987-11-25 |
| JPH043590Y2 JPH043590Y2 (en) | 1992-02-04 |
Family
ID=30914680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7179986U Expired JPH043590Y2 (en) | 1986-05-13 | 1986-05-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH043590Y2 (en) |
-
1986
- 1986-05-13 JP JP7179986U patent/JPH043590Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH043590Y2 (en) | 1992-02-04 |