JPH0169385U - - Google Patents
Info
- Publication number
- JPH0169385U JPH0169385U JP1987164561U JP16456187U JPH0169385U JP H0169385 U JPH0169385 U JP H0169385U JP 1987164561 U JP1987164561 U JP 1987164561U JP 16456187 U JP16456187 U JP 16456187U JP H0169385 U JPH0169385 U JP H0169385U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- series regulator
- power transformer
- fan
- transformer
- 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 2
- 238000001816 cooling Methods 0.000 claims 3
- 238000004804 winding Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
Description
第１図は本考案の１実施例を示す回路図、第２
図は第１図に示す各部の電圧、電流の波形図、第
３図は実用例を示す回路図、第４図は従来例の回
路図である。
１……ラインフイルタ、２……整流平滑回路、
３……制御回路、４……フオトカプラ、５……電
圧検出回路、７……ＤＣフアン、８……３端子レ
ギユレータ。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing one embodiment of the present invention.
The figures are voltage and current waveform diagrams of various parts shown in FIG. 1, FIG. 3 is a circuit diagram showing a practical example, and FIG. 4 is a circuit diagram of a conventional example. 1... Line filter, 2... Rectifier smoothing circuit,
3... Control circuit, 4... Photocoupler, 5... Voltage detection circuit, 7... DC fan, 8... 3-terminal regulator.
Claims (1)
側出力巻線に誘起する電圧をシリーズレギユレー
タで安定化し、この安定化した電圧を冷却用のＤ
Ｃフアンに供給するようにした電源装置の冷却回
路において、 電源トランスの出力巻線の電流をカレントトラ
ンスで検出し、その電圧をシリーズレギユレータ
のの出力電圧を設定している検出電圧に加え、シ
リーズレギユレータの設定電圧を超えた分だけシ
リーズレギユレータの出力電圧を高くする回路を
設けて負荷変動および入力変動に対応してＤＣフ
アンの回転速度を制御することを特徴とする電源
装置の冷却回路。[Claims for Utility Model Registration] Equipped with a power transformer, the voltage induced in the secondary output winding of the power transformer is stabilized by a series regulator, and this stabilized voltage is applied to the cooling D
In the cooling circuit of the power supply that supplies the C fan, the current in the output winding of the power transformer is detected by a current transformer, and the detected voltage is added to the detection voltage that sets the output voltage of the series regulator. , a power supply characterized in that the rotation speed of the DC fan is controlled in response to load fluctuations and input fluctuations by providing a circuit that increases the output voltage of the series regulator by the amount that exceeds the set voltage of the series regulator. Equipment cooling circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987164561U JPH0169385U (en) | 1987-10-29 | 1987-10-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987164561U JPH0169385U (en) | 1987-10-29 | 1987-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0169385U true JPH0169385U (en) | 1989-05-09 |
Family
ID=31450278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987164561U Pending JPH0169385U (en) | 1987-10-29 | 1987-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0169385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005245192A (en) * | 2004-01-29 | 2005-09-08 | Kyocera Mita Corp | Switching power supply |
-
1987
- 1987-10-29 JP JP1987164561U patent/JPH0169385U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005245192A (en) * | 2004-01-29 | 2005-09-08 | Kyocera Mita Corp | Switching power supply |
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