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 |
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