JPH0453334U - - Google Patents
Info
- Publication number
- JPH0453334U JPH0453334U JP1990095170U JP9517090U JPH0453334U JP H0453334 U JPH0453334 U JP H0453334U JP 1990095170 U JP1990095170 U JP 1990095170U JP 9517090 U JP9517090 U JP 9517090U JP H0453334 U JPH0453334 U JP H0453334U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- current
- voltage converter
- circuit
- passed
- 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
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims 4
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Dc Digital Transmission (AREA)
- Optical Communication System (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Description
第１図、第４図は、本考案の一実施例の構成図
、第２図は、第１図に示した整流回路の回路図、
第３図は、第１図に示した実施例の各点における
信号波形図である。第５図は、従来の技術の構成
図、第６図は、第５図に示した各点における信号
波形図である。
１……受光素子、２……電流電圧変換部、３…
…交流結合コンデンサ、４……整流回路、５……
差動増幅部、６……コンパレータ。
1 and 4 are block diagrams of an embodiment of the present invention, and FIG. 2 is a circuit diagram of the rectifier circuit shown in FIG. 1.
FIG. 3 is a signal waveform diagram at each point in the embodiment shown in FIG. FIG. 5 is a block diagram of a conventional technique, and FIG. 6 is a signal waveform diagram at each point shown in FIG. 1... Light receiving element, 2... Current voltage converter, 3...
...AC coupling capacitor, 4... Rectifier circuit, 5...
Differential amplifier section, 6... comparator.
Claims (1)
光電流を電圧に変換して増幅する電流電圧変換部
と、電流電圧変換部の出力を交流結合するコンデ
ンサと、交流結合コンデンサを経た信号を整流す
る整流回路と、交流結合コンデンサを経た信号お
よび整流回路を経た信号を差動増幅する差動増幅
部と、差動増幅部の出力信号を比較し、デイジタ
ル信号を出力するコンパレータとを備えたことを
特徴とする光受信回路。 ２ 請求項１記載の光受信回路において、電流電
圧変換部とコンパレータとの間に設けた、前記交
流結合コンデンサと前記整流回路と前記差動増幅
部とで成る回路を、前記電流電圧変換部とコンパ
レータの間で多段に接続したことを特徴とする光
受信回路。[Scope of Claim for Utility Model Registration] 1. A light receiving element that receives an optical signal, a current-voltage converter that converts the photocurrent from the light-receiving element into voltage and amplifies it, and a capacitor that couples the output of the current-voltage converter with AC, A rectifier circuit that rectifies the signal that has passed through the AC coupling capacitor, a differential amplification section that differentially amplifies the signal that has passed through the AC coupling capacitor and the signal that has passed through the rectification circuit, and the output signals of the differential amplification section are compared and a digital signal is generated. An optical receiving circuit comprising: a comparator that outputs an output. 2. The optical receiving circuit according to claim 1, wherein a circuit including the AC coupling capacitor, the rectifier circuit, and the differential amplifier provided between the current-voltage converter and the comparator is combined with the current-voltage converter. An optical receiving circuit characterized by multi-stage connections between comparators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990095170U JPH0453334U (en) | 1990-09-11 | 1990-09-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990095170U JPH0453334U (en) | 1990-09-11 | 1990-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0453334U true JPH0453334U (en) | 1992-05-07 |
Family
ID=31833688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990095170U Pending JPH0453334U (en) | 1990-09-11 | 1990-09-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453334U (en) |
-
1990
- 1990-09-11 JP JP1990095170U patent/JPH0453334U/ja active Pending