JPH033184U - - Google Patents
Info
- Publication number
- JPH033184U JPH033184U JP6335989U JP6335989U JPH033184U JP H033184 U JPH033184 U JP H033184U JP 6335989 U JP6335989 U JP 6335989U JP 6335989 U JP6335989 U JP 6335989U JP H033184 U JPH033184 U JP H033184U
- Authority
- JP
- Japan
- Prior art keywords
- dummy circuit
- active dummy
- output
- transformer
- power supply
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000009499 grossing Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 6
- 238000003079 width control Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例の構成ブロツク図、
第２図は放熱フインへの各発熱素子の取り付け状
態を示す図、第３図はその動作を説明するための
波形図、第４図はアクテイブダミー回路の他の特
性を示す線図、第５図は従来公知のアクテイブダ
ミー回路を備えた直流安定化電源装置の構成概念
図、第６図は第５図においてアクテイブダミー回
路ＡＤの動作例を示す線図である。
ｅｉｎ……入力交流電源、１……整流平滑回路
、２……トランス、３……電流検出回路、４……
コンパレータ、５……整流平滑回路、７……放熱
フイン、Ｌ１……チヨークコイル、Ｑ１……スイ
ツチング素子、ＡＤ……アクテイブダミー回路、
ＣＴＬ……ＰＷＭ幅制御回路。
FIG. 1 is a block diagram of an embodiment of the present invention.
Fig. 2 is a diagram showing how each heating element is attached to the heat dissipation fin, Fig. 3 is a waveform diagram to explain its operation, Fig. 4 is a diagram showing other characteristics of the active dummy circuit, and Fig. 5 This figure is a conceptual diagram of the configuration of a DC stabilized power supply device equipped with a conventionally known active dummy circuit, and FIG. 6 is a diagram showing an example of the operation of the active dummy circuit AD in FIG. 5. ein... Input AC power supply, 1... Rectifier smoothing circuit, 2... Transformer, 3... Current detection circuit, 4...
Comparator, 5... Rectifier smoothing circuit, 7... Heat dissipation fin, L1... Chiyoke coil, Q1... Switching element, AD... Active dummy circuit,
CTL...PWM width control circuit.
Claims (1)
イツチング素子によりオン／オフしてトランスの
一次巻線に印加すると共に、二次巻線に生ずる信
号を整流平滑して直流出力を得る直流安定化電源
装置であつて、 負荷電流を検出する電流検出手段と、 負荷が接続される出力端子間に接続されたアク
テイブダミー回路と、 電流検出手段からの信号が一定値以下になつた
ことを検出し、その出力に応じて前記アクテイブ
ダミー回路を制御するコンパレータとを備え、 トランスの二次巻線に生ずる信号を整流平滑す
る整流平滑回路の発熱素子と前記アクテイブダミ
ー回路の発熱素子とを共通の放熱手段に実装した
ことを特徴とする可変ダミー回路を備えた直流安
定化電源装置。[Claims for Utility Model Registration] Input AC power is rectified and smoothed, the DC voltage is turned on and off by a switching element and applied to the primary winding of a transformer, and the signal generated in the secondary winding is rectified and smoothed. A DC stabilized power supply device that obtains a DC output, comprising a current detection means for detecting load current, an active dummy circuit connected between the output terminals to which the load is connected, and a signal from the current detection means below a certain value. and a comparator that detects that the active dummy circuit has changed, and controls the active dummy circuit according to the output thereof, and the heating element of the rectifying and smoothing circuit that rectifies and smoothes the signal generated in the secondary winding of the transformer and the active dummy circuit. A DC stabilized power supply device equipped with a variable dummy circuit characterized in that a heating element and a heat generating element are mounted on a common heat dissipation means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6335989U JPH033184U (en) | 1989-05-31 | 1989-05-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6335989U JPH033184U (en) | 1989-05-31 | 1989-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH033184U true JPH033184U (en) | 1991-01-14 |
Family
ID=31593332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6335989U Pending JPH033184U (en) | 1989-05-31 | 1989-05-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH033184U (en) |
-
1989
- 1989-05-31 JP JP6335989U patent/JPH033184U/ja active Pending
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