JPS603471U - Rotation speed detection device - Google Patents
Rotation speed detection deviceInfo
- Publication number
- JPS603471U JPS603471U JP9376983U JP9376983U JPS603471U JP S603471 U JPS603471 U JP S603471U JP 9376983 U JP9376983 U JP 9376983U JP 9376983 U JP9376983 U JP 9376983U JP S603471 U JPS603471 U JP S603471U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- speed detection
- voltage
- detection circuit
- circuit
- 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 Eletrric Generators (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図は本考案の一実施例を示す回路図、第2図は第1
の回転数検出回路の一例を示す回路図である。
PMG・・・永久磁石発電機、100・・・第1の回転
゛数構出回路、200・・・第2の回転数検
出回路、 。
TF、、 TF2・・・変圧器、1・・・パルス発生回
路、2・・・パルス−電圧変換器、3・・・三相ブリッ
ジ回路、300・・・整流回路、D□〜D8・・・ダイ
オード、A1〜A6・・・演算増幅器、N0T11〜N
0T62・・・否定回路、Qo・・・トランジスタ。Fig. 1 is a circuit diagram showing one embodiment of the present invention, and Fig. 2 is a circuit diagram showing an embodiment of the present invention.
FIG. 3 is a circuit diagram showing an example of a rotation speed detection circuit. PMG...Permanent magnet generator, 100...First rotation speed detection circuit, 200...Second rotation speed detection circuit. TF,, TF2...Transformer, 1...Pulse generation circuit, 2...Pulse-voltage converter, 3...Three-phase bridge circuit, 300...Rectifier circuit, D□~D8...・Diode, A1~A6...Operation amplifier, N0T11~N
0T62...Negation circuit, Qo...Transistor.
Claims (1)
た大きさ及び周波数の交流電圧を発生する永久磁石発電
機と、この永久磁石発電機に一次側が接続された第1の
変圧器、この第1の変圧器の二次側の周波数に対応した
数のパルスを発生するパルス発生回路、及びこのパルス
発生回路よりのパルスの数に対応した直流電圧を発生す
るパルス−電圧変換器より成る第1の回転数検出回路と
、前記永久磁石発電機に一次側が接続された第2の変圧
器、及びこの第2の変圧器の二次側の交流電圧の大きさ
に対応した直流電圧を発生する整流回路を含み、前記第
1の回転数検出回路に並列に接続された第2の回転数検
出回路と、前記第1の回転数検出回路の出力電圧及び第
2の回転数検出回路の出力電圧のうち大きい方の電圧を
選択する選択回路とより成ることを特徴とする回転数検
出装置。a permanent magnet generator connected to a required rotating body and generating an alternating current voltage with a magnitude and frequency proportional to the rotational speed of the rotating body; a first transformer whose primary side is connected to the permanent magnet generator; It consists of a pulse generation circuit that generates a number of pulses corresponding to the frequency of the secondary side of this first transformer, and a pulse-voltage converter that generates a DC voltage corresponding to the number of pulses from this pulse generation circuit. A first rotation speed detection circuit, a second transformer whose primary side is connected to the permanent magnet generator, and generates a DC voltage corresponding to the magnitude of the AC voltage on the secondary side of the second transformer. a second rotation speed detection circuit including a rectifier circuit connected in parallel to the first rotation speed detection circuit; an output voltage of the first rotation speed detection circuit; and an output of the second rotation speed detection circuit; A rotation speed detection device comprising: a selection circuit that selects a larger voltage among the voltages.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9376983U JPS603471U (en) | 1983-06-17 | 1983-06-17 | Rotation speed detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9376983U JPS603471U (en) | 1983-06-17 | 1983-06-17 | Rotation speed detection device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS603471U true JPS603471U (en) | 1985-01-11 |
Family
ID=30224818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9376983U Pending JPS603471U (en) | 1983-06-17 | 1983-06-17 | Rotation speed detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS603471U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57175259A (en) * | 1981-04-22 | 1982-10-28 | Fanuc Ltd | Speed detector |
-
1983
- 1983-06-17 JP JP9376983U patent/JPS603471U/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57175259A (en) * | 1981-04-22 | 1982-10-28 | Fanuc Ltd | Speed detector |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS60181200U (en) | AC generator control device | |
JPS603471U (en) | Rotation speed detection device | |
JPS5964530U (en) | Signal generator for electromagnetic flowmeter converter | |
JPS58110857U (en) | frequency detection circuit | |
JPS58165619U (en) | electromagnetic flow meter | |
JPS60121333U (en) | AC power supply stop device | |
JPS59132398U (en) | Internal combustion engine driven power generator | |
JPS5831796U (en) | Motor control device | |
JPS6055098U (en) | induction heating cooker | |
JPS5859398U (en) | Field interrupter | |
JPS5947292U (en) | Thyristor valve equivalent test equipment | |
JPS58196594U (en) | Rotor position detection circuit for commutatorless motor | |
JPS5811985U (en) | Magnetic alternator generator | |
JPS6038100U (en) | generator voltage regulator | |
JPS58101172U (en) | Speed detection device for variable speed motor | |
JPS6031671U (en) | power measurement device | |
JPS58139845U (en) | power control circuit | |
JPS6096944U (en) | Parallel operation device for synchronous generators | |
JPS5956982U (en) | High voltage power supply | |
JPS5949962U (en) | AC generator rotation speed detection device | |
JPS6031200U (en) | Excitation device for brushless alternator | |
JPS59149068U (en) | PWM inverter voltage detection device | |
JPS60566U (en) | Phase sequence detection circuit | |
JPS6038099U (en) | generator voltage regulator | |
JPS5880709U (en) | automatic train control device |