公开(公告)号：EP0288574A1

公开(公告)日：1988-11-02

申请号：EP87906932.6

申请日：1987-10-22

申请人： FANUC LTD

发明人： KOBARI, Katsuo ,  TAKEKOSHI, Yoshitaka ,  TANIGUCHI, Mitsuyuki ,  KIKUCHI, Hirofumi

IPC分类号： G01D5/36 ,  H03M1/24 ,  H03K17/968

CPC分类号： G01D5/36 ,  H03K17/968 ,  H03M1/303

摘要： An operation transistor (3) is connected in series with a ligh-receiving element (1) and a plurality of signal-producing transistors (5a, 5b) are connected in parallel with the operation transistor (3) in a current mirrorfashion. Output signals (0 1 , O2) resulting from photoelectric conversion supplied in parallel to a plurality of circuits are independently supplied through said plurality of signal-producing transistors (5a, 5b), in order to eliminate interference among a plurality of circuits that are served with the output signals (0 1 , 0 2 ) resulting from photoelectric conversion in parallel and that perform predetermined processings. Thus the signals are correctly processed to reduce the consumption of electric power. Furthermore, the response speed is enhanced.

摘要翻译： 电路将光电流（Id）通过光电二极管（I）转换成多个电输出信号（01,02），用于脉冲编码器的进一步信号处理。 操作晶体管（3）与光电二极管串联连接，并且多个产生信号的晶体管（5a，5b）以电流镜与工作晶体管并联连接。 这使得每个晶体管（3,5a，5b）保持相同的电流并且根据串联连接的电阻器（4a，4b）产生信号电压。

公开(公告)号：EP0288574B1

公开(公告)日：1992-08-05

申请号：EP87906932.6

申请日：1987-10-22

申请人： FANUC LTD.

发明人： KOBARI, Katsuo ,  TAKEKOSHI, Yoshitaka ,  TANIGUCHI, Mitsuyuki ,  KIKUCHI, Hirofumi

IPC分类号： G01D5/36 ,  H03M1/24 ,  H03K17/968

CPC分类号： G01D5/36 ,  H03K17/968 ,  H03M1/303

摘要： An operation transistor (3) is connected in series with a light-receiving element (1) and a plurality of signal-producing transistors (5a, 5b) are connected in parallel with the operation transistor (3) in a current mirror fashion. Output signals (O1, O2) resulting from photoelectric conversion supplied in parallel to a plurality of circuits are independently supplied through said plurality of signal-producing transistors (5a, 5b), in order to eliminate interference among a plurality of circuits that are served with the output signals (O1, O2) resulting from photoelectric conversion in parallel and that perform predetermined processings. Thus the signals are correctly processed to reduce the consumption of electric power. Furthermore, the response speed is enhanced.