Title:
光受信回路
Document Type and Number:
Japanese Patent JP4590974
Kind Code:
B2
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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Inventors:
Ichino Moroho
Hayashi Shigeo
Hayashi Shigeo
Application Number:
JP2004232662A
Publication Date:
December 01, 2010
Filing Date:
August 09, 2004
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
H04B10/40; H04B10/50; H04B10/60; H04B10/67; H04B10/69
Domestic Patent References:
| JP10068746A | ||||
| JP10303820A | ||||
| JP11163803A | ||||
| JP2000244418A | ||||
| JP2001321336A | ||||
| JP2002208713A | ||||
| JP11284445A | ||||
| JP2004187168A | ||||
| JP200168943A |
Foreign References:
| WO2004033557A1 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Tatsuya Shioda
Shiro Terasaki
Masatoshi Shibata
Tatsuya Shioda
Shiro Terasaki
Masatoshi Shibata