JPS6416037A - Optical receiver - Google Patents

Optical receiver

Info

Publication number
JPS6416037A
JPS6416037A JP62172683A JP17268387A JPS6416037A JP S6416037 A JPS6416037 A JP S6416037A JP 62172683 A JP62172683 A JP 62172683A JP 17268387 A JP17268387 A JP 17268387A JP S6416037 A JPS6416037 A JP S6416037A
Authority
JP
Japan
Prior art keywords
constant current
circuit
common potential
current circuit
voltage
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
Application number
JP62172683A
Other languages
Japanese (ja)
Inventor
Toshibumi Kono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP62172683A priority Critical patent/JPS6416037A/en
Publication of JPS6416037A publication Critical patent/JPS6416037A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Communication System (AREA)

Abstract

PURPOSE:To drive a current controller at a low voltage with respect to a common potential with a simple circuit not requiring any feedback circuit by connecting a terminal of an avalanche photodiode to the common potential via a constant current circuit. CONSTITUTION:The constant current circuit 4 is connected between the avalanche photo diode 2 and the common potential and a coupling capacitor 5 is provided, which is connected between the connecting point of the avalanche photodiode 2 to the constant current circuit 4 and the input of the amplifier 6. The constant current circuit 4 is the open collector circuit composed of a transistor (TR) and a resistor R3 and the current flowing to the TR is determined by the voltage diciding the voltage division ratio of resistors R1, R2 and a positive power supply. Thus, only the DC component (mean value) passes through the TR among the current flowing to the avalanche photodiode 2 and the signal component is inputted to an amplifier 5 by a coupling capacitor 5. Thus, one terminal of the constant current circuit 4 is at a common potential, the output voltage of the current controller 3 controlling the constant current circuit 4 is a low voltage with respect do the common potential.
JP62172683A 1987-07-09 1987-07-09 Optical receiver Pending JPS6416037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62172683A JPS6416037A (en) 1987-07-09 1987-07-09 Optical receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62172683A JPS6416037A (en) 1987-07-09 1987-07-09 Optical receiver

Publications (1)

Publication Number Publication Date
JPS6416037A true JPS6416037A (en) 1989-01-19

Family

ID=15946426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62172683A Pending JPS6416037A (en) 1987-07-09 1987-07-09 Optical receiver

Country Status (1)

Country Link
JP (1) JPS6416037A (en)

Similar Documents

Publication Publication Date Title
DE3685006D1 (en) OPTICAL RECEIVER.
JPS6416037A (en) Optical receiver
FI982046A (en) chipset
US4716513A (en) Base drive circuit in a transistor inverter
JPS55115383A (en) Bias circuit for laser diode
JPS57155809A (en) Transistor amplifier
SU1749887A1 (en) Controlled resistor
JPH0352028Y2 (en)
EP0325147A3 (en) Circuit arrangement for a voltage-controlled constant voltage source with an input side rc network
JPS5736366A (en) Optical signal output circuit
JPS6216021Y2 (en)
KR910001074Y1 (en) Power supply with s.m.p.s.
KR960005180Y1 (en) Automatic balance level control circuit
SU1739369A1 (en) High voltage stabilizer
SU1394196A1 (en) Device for amplifying and driving a photodiode output signal
JPS57146325A (en) Constant current circuit
SU1039020A1 (en) Pulse generator
EP0295006A3 (en) An optical sensor
JPS6490605A (en) Agc circuit
JPS5797691A (en) Bias circuit for laser diode
JPS572587A (en) Bias circuit for laser diode
JPH0418256Y2 (en)
SU638939A1 (en) Pulsed dc voltage stabilizer
JPS57143908A (en) Variable gain amplifying circuit
JPH01240002A (en) Inverse bias circuit for avalanche photodiode