JPS60118762U - Motor fan rotation detector - Google Patents
Motor fan rotation detectorInfo
- Publication number
- JPS60118762U JPS60118762U JP624484U JP624484U JPS60118762U JP S60118762 U JPS60118762 U JP S60118762U JP 624484 U JP624484 U JP 624484U JP 624484 U JP624484 U JP 624484U JP S60118762 U JPS60118762 U JP S60118762U
- Authority
- JP
- Japan
- Prior art keywords
- motor fan
- rotation detector
- reference voltage
- motor
- fan rotation
- 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
Landscapes
- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は直流ブラシレスモーフの回路の一例を示す結線
図、第２図は本考案の一実施例を示す回路図、第３図ａ
はモータへの通電電流及び電流検出用抵抗の両端電圧の
波形を示す波形図、同図すは電圧比較器の出力電圧波形
を示す波形図である。
１・・・直流ブラシレスモーフを用いたモータファン、
１ａ、１ｂ・・・モータファンの電源コード、２・・・
直流電源、３・・・モータファンの回転検出器、４３ａ
・・・検出抵抗、３ｂ・・・基準直流電圧電源、３ｃ・
・・電圧比較器。Fig. 1 is a wiring diagram showing an example of a DC brushless morph circuit, Fig. 2 is a circuit diagram showing an embodiment of the present invention, and Fig. 3 a.
1 is a waveform diagram showing the waveforms of the current flowing to the motor and the voltage across the current detection resistor, and is also a waveform chart showing the output voltage waveform of the voltage comparator. 1... Motor fan using DC brushless morph,
1a, 1b...Motor fan power cord, 2...
DC power supply, 3... Motor fan rotation detector, 43a
...Detection resistor, 3b...Reference DC voltage power supply, 3c.
...Voltage comparator.
Claims (1)
出する回転検出器において、該モータファンの電源回路
に挿入されて該モータへの通電電流を検出する電流検出
用抵抗と、直流基準電圧を出力する基準電圧源と、前記
電流検出用抵抗の両端電圧と前記基準電圧とを比較して
前記電流検出用抵抗の両端電圧が瞬時的に前記基準電圧
以来に′なったときに回転検出信号を出力する比較器と
を具備したことを特徴とするモータファンの回転検出器
。A rotation detector that detects the rotation of a motor fan using a DC brushless motor includes a current detection resistor that is inserted into the power supply circuit of the motor fan to detect the current flowing to the motor, and outputs a DC reference voltage. A reference voltage source compares the voltage across the current detection resistor with the reference voltage, and outputs a rotation detection signal when the voltage across the current detection resistor instantaneously becomes '' since the reference voltage. A rotation detector for a motor fan, characterized by comprising a comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP624484U JPS60118762U (en) | 1984-01-23 | 1984-01-23 | Motor fan rotation detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP624484U JPS60118762U (en) | 1984-01-23 | 1984-01-23 | Motor fan rotation detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60118762U true JPS60118762U (en) | 1985-08-10 |
Family
ID=30483504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP624484U Pending JPS60118762U (en) | 1984-01-23 | 1984-01-23 | Motor fan rotation detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60118762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006052724A (en) * | 2004-07-12 | 2006-02-23 | Matsushita Electric Ind Co Ltd | Method for detecting stop of fan and fan stop detecting device |
-
1984
- 1984-01-23 JP JP624484U patent/JPS60118762U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006052724A (en) * | 2004-07-12 | 2006-02-23 | Matsushita Electric Ind Co Ltd | Method for detecting stop of fan and fan stop detecting device |
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