Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Moriyasu Ichino0
Sigeo Hayashi0
Date of Patent
September 4, 2007
0Patent Application Number
111983940
Date Filed
August 8, 2005
0Patent Primary Examiner
Patent abstract
The present invention is to provide a light-receiving circuit, in particular, the circuit for an avalanche photodiode (APD), in which the current of the APD is dynamically controlled to protect the APD from the over current. The circuit comprises the high voltage source, the current mirror circuit connected to the high voltage source, the APD connected to one of the current output terminal of the current mirror circuit, and the current source connected to the other current output terminal of the current mirror circuit. The current flowing out from the other current output terminal is dynamically controlled by the current source to protect the APD from the over current.
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