JPH02104409U - - Google Patents
Info
- Publication number
- JPH02104409U JPH02104409U JP1989012604U JP1260489U JPH02104409U JP H02104409 U JPH02104409 U JP H02104409U JP 1989012604 U JP1989012604 U JP 1989012604U JP 1260489 U JP1260489 U JP 1260489U JP H02104409 U JPH02104409 U JP H02104409U
- Authority
- JP
- Japan
- Prior art keywords
- blower
- heat
- generating part
- control circuit
- signal
- 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
- 238000001816 cooling Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 1
Landscapes
- Transmitters (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Control Of Temperature (AREA)
- Control Of Electric Motors In General (AREA)
Description
第１図は本考案による制御回路の一実施例を示
し、第２図は第１図に示した制御回路の動作を説
明するための電圧波形図、第３図は従来の制御回
路の一例を示した図。
図中、１はバツフア回路、２は積分回路、３は
コンパレータ。
Fig. 1 shows an embodiment of the control circuit according to the present invention, Fig. 2 is a voltage waveform diagram for explaining the operation of the control circuit shown in Fig. 1, and Fig. 3 shows an example of the conventional control circuit. The diagram shown. In the figure, 1 is a buffer circuit, 2 is an integration circuit, and 3 is a comparator.
Claims (1)
の該発熱部位を冷却するための送風機の制御回路
において、前記電気信号にもとづいてつくられた
２値信号を積分するＣＲ形の積分回路と、該積分
回路の出力電圧を基準電圧と比較し、比較結果に
応じた制御信号を前記送風機に送出する電圧比較
器とを含み、前記電圧比較器としてヒステリシス
特性を有するものを用いたことを特徴とする冷却
用送風機の制御回路。 In a control circuit for a blower for cooling a heat-generating part of an electric device having a heat-generating part in response to an electric signal, a CR-type integrating circuit that integrates a binary signal created based on the electric signal, and the integrating circuit a voltage comparator that compares the output voltage of the fan with a reference voltage and sends a control signal to the blower according to the comparison result, and the voltage comparator has a hysteresis characteristic. Blower control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989012604U JPH02104409U (en) | 1989-02-07 | 1989-02-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989012604U JPH02104409U (en) | 1989-02-07 | 1989-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02104409U true JPH02104409U (en) | 1990-08-20 |
Family
ID=31222188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989012604U Pending JPH02104409U (en) | 1989-02-07 | 1989-02-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02104409U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6220012A (en) * | 1985-07-19 | 1987-01-28 | Fujitsu Ltd | Power unit for computer system |
| JPS63305764A (en) * | 1987-06-05 | 1988-12-13 | Matsushita Electric Ind Co Ltd | Cooling device for inverter |
-
1989
- 1989-02-07 JP JP1989012604U patent/JPH02104409U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6220012A (en) * | 1985-07-19 | 1987-01-28 | Fujitsu Ltd | Power unit for computer system |
| JPS63305764A (en) * | 1987-06-05 | 1988-12-13 | Matsushita Electric Ind Co Ltd | Cooling device for inverter |