JPH01150496U - - Google Patents
Info
- Publication number
- JPH01150496U JPH01150496U JP1988046422U JP4642288U JPH01150496U JP H01150496 U JPH01150496 U JP H01150496U JP 1988046422 U JP1988046422 U JP 1988046422U JP 4642288 U JP4642288 U JP 4642288U JP H01150496 U JPH01150496 U JP H01150496U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- signal
- fan motor
- temperature detection
- control means
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例を示す構成ブロツク
図、第２図はその動作を説明するための線図、第
３図は従来の回路を示す構成ブロツク図である。
１…電圧制御手段、２…フアンモータ、３…温
度検出手段、４…基準電圧源、５…誤差増幅器、
７…比較器、６，８…増幅器。
FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram for explaining its operation, and FIG. 3 is a block diagram showing a conventional circuit. DESCRIPTION OF SYMBOLS 1... Voltage control means, 2... Fan motor, 3... Temperature detection means, 4... Reference voltage source, 5... Error amplifier,
7... Comparator, 6, 8... Amplifier.
Claims (1)
するフアンモータと、 このフアンモータによつて冷却される冷却対象
の温度を検出する温度検出手段と、 この温度検出手段からの信号に対応した電圧と
所定の電圧とを比較する比較器と、 前記温度検出手段からの信号に対応した電圧と
前記比較器からの信号の差を増幅する増幅器とを
備え、 前記電圧制御手段は前記フアンモータに印加す
る電圧を前記増幅器からの出力信号に応じて制御
するようにしたフアンモータ駆動回路。[Claims for Utility Model Registration] Voltage control means for controlling the magnitude of supply voltage, a fan motor that rotates in accordance with the supply voltage from the voltage control means, and a cooling object cooled by the fan motor. temperature detection means for detecting temperature; a comparator for comparing a voltage corresponding to a signal from the temperature detection means with a predetermined voltage; and a voltage corresponding to the signal from the temperature detection means and a signal from the comparator. an amplifier for amplifying a difference between the two, wherein the voltage control means controls a voltage applied to the fan motor according to an output signal from the amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988046422U JPH0753438Y2 (en) | 1988-04-06 | 1988-04-06 | Fan motor drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988046422U JPH0753438Y2 (en) | 1988-04-06 | 1988-04-06 | Fan motor drive circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01150496U true JPH01150496U (en) | 1989-10-18 |
| JPH0753438Y2 JPH0753438Y2 (en) | 1995-12-06 |
Family
ID=31272690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988046422U Expired - Lifetime JPH0753438Y2 (en) | 1988-04-06 | 1988-04-06 | Fan motor drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753438Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208892A (en) * | 2010-03-25 | 2011-10-05 | 罗姆股份有限公司 | Motor drive circuit, cooling device, electronic device, timing detection circuit |
| JP2011205791A (en) * | 2010-03-25 | 2011-10-13 | Rohm Co Ltd | Motor drive circuit, cooler using the same and electronic apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6285011U (en) * | 1985-11-18 | 1987-05-30 | ||
| JPS62171484A (en) * | 1986-01-22 | 1987-07-28 | Toshiba Corp | Speed controller |
-
1988
- 1988-04-06 JP JP1988046422U patent/JPH0753438Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6285011U (en) * | 1985-11-18 | 1987-05-30 | ||
| JPS62171484A (en) * | 1986-01-22 | 1987-07-28 | Toshiba Corp | Speed controller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208892A (en) * | 2010-03-25 | 2011-10-05 | 罗姆股份有限公司 | Motor drive circuit, cooling device, electronic device, timing detection circuit |
| JP2011205791A (en) * | 2010-03-25 | 2011-10-13 | Rohm Co Ltd | Motor drive circuit, cooler using the same and electronic apparatus |
| US10164557B2 (en) | 2010-03-25 | 2018-12-25 | Rohm Co., Ltd. | Motor driving circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0753438Y2 (en) | 1995-12-06 |
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