JPH0368014U - - Google Patents
Info
- Publication number
- JPH0368014U JPH0368014U JP12924089U JP12924089U JPH0368014U JP H0368014 U JPH0368014 U JP H0368014U JP 12924089 U JP12924089 U JP 12924089U JP 12924089 U JP12924089 U JP 12924089U JP H0368014 U JPH0368014 U JP H0368014U
- Authority
- JP
- Japan
- Prior art keywords
- pull
- circuit
- encoder
- power supply
- output 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Optical Transform (AREA)
Description
第１図は本考案にかかるエンコーダの実施例を
示す回路図、第２図は同上実施例による通常時の
検出信号の立ち上がり特性を示す波形図、第３図
は同じくバツクアツプ時の立ち上がり特性を示す
波形図、第４図は従来のエンコーダの例を示す回
路図、第５図は同上従来例による通常時の検出信
号の立ち上がり特性を示す波形図、第６図は同じ
くバツクアツプ時の立ち上がり特性を示す波形図
である。
１……ドライブ電源、２……バツクアツプ電源
、３……センサ部、４……カウンタ、Ｒ１……第
１の抵抗、Ｒ２……第２の抵抗。
Fig. 1 is a circuit diagram showing an embodiment of the encoder according to the present invention, Fig. 2 is a waveform diagram showing the rise characteristics of the detection signal during normal operation according to the same embodiment, and Fig. 3 also shows the rise characteristics during backup. Waveform diagram: Figure 4 is a circuit diagram showing an example of a conventional encoder; Figure 5 is a waveform diagram showing the rise characteristics of the detection signal during normal operation according to the conventional example; and Figure 6 also shows the rise characteristics during backup. FIG. DESCRIPTION OF SYMBOLS 1...Drive power supply, 2...Backup power supply, 3...Sensor section, 4...Counter, R1 ...First resistor, R2 ...Second resistor.
Claims (1)
にエンコーダを駆動するバツクアツプ電源と、被
検出体の位置を検出するセンサ部と、センサ部の
出力信号をカウントするカウンタと、センサ部の
出力信号をプルアツプする第１のプルアツプ回路
及び第２のプルアツプ回路とを有してなるエンコ
ーダであつて、 上記第１のプルアツプ回路は、バツクアツプ電
源から第１の抵抗を介してセンサ部の出力側に接
続され、 上記第２のプルアツプ回路は、ドライブ電源か
ら第２の抵抗を介してセンサ部の出力側に接続さ
れ、 通常は第１のプルアツプ回路及び第２のプルア
ツプ回路を流れる電流でプルアツプされ、停電時
は第１のプルアツプ回路を流れる電流でプルアツ
プされることを特徴とするエンコーダ。[Scope of Claim for Utility Model Registration] A drive power supply that drives the encoder, a backup power supply that drives the encoder in the event of a power outage, a sensor unit that detects the position of a detected object, a counter that counts the output signal of the sensor unit, and a sensor. The encoder has a first pull-up circuit and a second pull-up circuit for pulling up an output signal of the sensor section, and the first pull-up circuit receives the output signal from the sensor section from a backup power source through a first resistor. The second pull-up circuit is connected to the output side of the sensor unit from the drive power supply via the second resistor, and normally the current flowing through the first pull-up circuit and the second pull-up circuit An encoder characterized in that the encoder is pulled up and is pulled up by the current flowing through the first pull-up circuit during a power outage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989129240U JPH0729457Y2 (en) | 1989-11-04 | 1989-11-04 | Encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989129240U JPH0729457Y2 (en) | 1989-11-04 | 1989-11-04 | Encoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0368014U true JPH0368014U (en) | 1991-07-03 |
| JPH0729457Y2 JPH0729457Y2 (en) | 1995-07-05 |
Family
ID=31676885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989129240U Expired - Fee Related JPH0729457Y2 (en) | 1989-11-04 | 1989-11-04 | Encoder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729457Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62154754U (en) * | 1986-03-24 | 1987-10-01 | ||
| JPS63305211A (en) * | 1987-06-05 | 1988-12-13 | Shicoh Eng Co Ltd | Magnetic encoder that determines absolute position |
-
1989
- 1989-11-04 JP JP1989129240U patent/JPH0729457Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62154754U (en) * | 1986-03-24 | 1987-10-01 | ||
| JPS63305211A (en) * | 1987-06-05 | 1988-12-13 | Shicoh Eng Co Ltd | Magnetic encoder that determines absolute position |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0729457Y2 (en) | 1995-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |