JPH02150512U - - Google Patents
Info
- Publication number
- JPH02150512U JPH02150512U JP5953089U JP5953089U JPH02150512U JP H02150512 U JPH02150512 U JP H02150512U JP 5953089 U JP5953089 U JP 5953089U JP 5953089 U JP5953089 U JP 5953089U JP H02150512 U JPH02150512 U JP H02150512U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- output
- light emitting
- emitting diode
- 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
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Transform (AREA)
Description
第１図は本考案の一実施例の電気回路図、第２
図は光学式エンコーダ装置の機械的構成を示す斜
視図、第３図は先行技術の電気回路図である。
１４，１８……直列回路、１５……供給電源、
１９……電流／電圧変換回路、２２……比較回路
、Ｄ１……発光ダイオード、Ｄ２……ホトダイオ
ード、Ｒ１……抵抗、Ｒ２……分圧抵抗。
Fig. 1 is an electrical circuit diagram of one embodiment of the present invention;
The figure is a perspective view showing the mechanical structure of the optical encoder device, and FIG. 3 is an electrical circuit diagram of the prior art. 14, 18...Series circuit, 15...Power supply,
19... Current/voltage conversion circuit, 22... Comparison circuit, D1... Light emitting diode, D2... Photodiode, R1... Resistor, R2... Voltage dividing resistor.
Claims (1)
介して、ホトダイオードによつて受光し、ホトダ
イオードの出力によつて被検出部材の変位を検出
する光学式エンコーダ装置において、 抵抗と発光ダイオードを直列に接続した発光ダ
イオード駆動回路と、 発光ダイオードの順方向電圧に等しいツエナ電
圧を有するツエナダイオードと分圧用抵抗を直列
に接続した分圧回路を有し、 分圧回路の出力を、比較回路の一方入力に与え
、 発光ダイオードの光出力を受光するホトダイオ
ードの出力電流を、電流／電圧変換回路によつて
電圧に変換し、 電流／電圧変換回路の出力電圧を比較回路の他
方の入力に与えることを特徴とする光学式エンコ
ーダ装置。[Claims for Utility Model Registration] In an optical encoder device that receives light output from a light emitting diode through a member to be detected by a photodiode, and detects displacement of the member to be detected by the output of the photodiode, It has a light emitting diode drive circuit in which a resistor and a light emitting diode are connected in series, and a voltage dividing circuit in which a Zener diode with a Zener voltage equal to the forward voltage of the light emitting diode and a voltage dividing resistor are connected in series, and the output of the voltage dividing circuit is is applied to one input of the comparison circuit, the output current of the photodiode that receives the light output of the light emitting diode is converted into a voltage by the current/voltage conversion circuit, and the output voltage of the current/voltage conversion circuit is applied to the other input of the comparison circuit. An optical encoder device characterized in that an optical encoder device is provided with an input signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5953089U JPH02150512U (en) | 1989-05-22 | 1989-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5953089U JPH02150512U (en) | 1989-05-22 | 1989-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02150512U true JPH02150512U (en) | 1990-12-26 |
Family
ID=31586106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5953089U Pending JPH02150512U (en) | 1989-05-22 | 1989-05-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02150512U (en) |
-
1989
- 1989-05-22 JP JP5953089U patent/JPH02150512U/ja active Pending