Optical receiving circuit

According to an embodiment, the optical receiving circuit includes a current compensation circuit, a photodiode, and a transimpedance circuit. The current compensation circuit generates a first current having a positive temperature coefficient. The photodiode receives an optical signal, generates a...

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Bibliographic Details
Main Author Todaka, Junichi
Format Patent
LanguageEnglish
Published 19.07.2022
Subjects
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
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Abstract According to an embodiment, the optical receiving circuit includes a current compensation circuit, a photodiode, and a transimpedance circuit. The current compensation circuit generates a first current having a positive temperature coefficient. The photodiode receives an optical signal, generates a first current signal including a photoelectric conversion current having a negative temperature coefficient, and outputs a second current signal which is the sum of the first current and the first current signal. The transimpedance circuit has a negative feedback resistor and receives the second current signal and generates an output voltage by current-voltage-converting the second current signal.
AbstractList According to an embodiment, the optical receiving circuit includes a current compensation circuit, a photodiode, and a transimpedance circuit. The current compensation circuit generates a first current having a positive temperature coefficient. The photodiode receives an optical signal, generates a first current signal including a photoelectric conversion current having a negative temperature coefficient, and outputs a second current signal which is the sum of the first current and the first current signal. The transimpedance circuit has a negative feedback resistor and receives the second current signal and generates an output voltage by current-voltage-converting the second current signal.
Author Todaka, Junichi
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RelatedCompanies Kabushiki Kaisha Toshiba
Toshiba Electronic Devices & Storage Corporation
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Snippet According to an embodiment, the optical receiving circuit includes a current compensation circuit, a photodiode, and a transimpedance circuit. The current...
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SourceType Open Access Repository
SubjectTerms COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
Title Optical receiving circuit
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