JPH0385576U - - Google Patents
Info
- Publication number
- JPH0385576U JPH0385576U JP14646389U JP14646389U JPH0385576U JP H0385576 U JPH0385576 U JP H0385576U JP 14646389 U JP14646389 U JP 14646389U JP 14646389 U JP14646389 U JP 14646389U JP H0385576 U JPH0385576 U JP H0385576U
- Authority
- JP
- Japan
- Prior art keywords
- switching means
- rotating body
- voltage
- rotation
- detected
- 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
- 238000010586 diagram Methods 0.000 description 3
- 239000013256 coordination polymer Substances 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は同上実施例におけるスイツチング制御を示す
フローチヤート、第３図は従来の信号処理回路の
一例を示す回路図、第４図はセンサ出力と信号処
理後のパルス信号との関係を示すタイムチヤート
、第５図は回転速度とセンサ出力との関係を示す
線図である。
１……マイクロコンピユータ、Ｒ４……分圧抵
抗、ＴＲ……トランジスタ、ＣＰ……比較器。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
FIG. 3 is a circuit diagram showing an example of a conventional signal processing circuit; FIG. 4 is a time chart showing the relationship between the sensor output and the pulse signal after signal processing; FIG. 5 is a diagram showing the relationship between rotational speed and sensor output. 1...Microcomputer, R4 ...Voltage dividing resistor, TR...Transistor, CP...Comparator.
Claims (1)
号を所定回転角度毎に発生する電磁ピツクアツプ
式回転センサの信号処理回路であつて、センサ出
力電圧を基準電圧と比較して回転に同期したパル
ス信号を出力する比較器と、センサ出力電圧を前
記比較器に分圧して入力させる分圧抵抗と、該分
圧抵抗と直列に接続されたスイツチング手段と、
該スイツチング手段を被検出回転体の回転速度が
所定速度以下であるときにオフさせ、所定速度を
越えるときにオンさせる制御手段と、を設けたこ
とを特徴とする電磁ピツクアツプ式回転センサの
信号処理回路。 A signal processing circuit for an electromagnetic pick-up type rotation sensor that generates a one-cycle AC signal at every predetermined rotation angle in synchronization with the rotation of a rotating body to be detected, and compares the sensor output voltage with a reference voltage to synchronize with the rotation. a comparator that outputs a pulse signal, a voltage dividing resistor that divides the sensor output voltage and inputs the divided voltage to the comparator, and switching means connected in series with the voltage dividing resistor;
Signal processing for an electromagnetic pick-up type rotation sensor, characterized in that the switching means is provided with a control means for turning off the switching means when the rotational speed of the rotating body to be detected is below a predetermined speed, and turning on the switching means when the rotational speed of the rotating body to be detected exceeds the predetermined speed. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14646389U JPH0385576U (en) | 1989-12-21 | 1989-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14646389U JPH0385576U (en) | 1989-12-21 | 1989-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0385576U true JPH0385576U (en) | 1991-08-29 |
Family
ID=31693043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14646389U Pending JPH0385576U (en) | 1989-12-21 | 1989-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0385576U (en) |
-
1989
- 1989-12-21 JP JP14646389U patent/JPH0385576U/ja active Pending