发明名称 |
Optical receiver for compensating DC offset |
摘要 |
Disclosed is an optical communication receiver capable of compensating a DC offset while preventing an input load effect. The optical communication receiver includes an optical signal detector; an amplifier inputted with a photocurrent outputted from the optical signal detector; and a DC offset compensation unit provided therein with a third transistor and a fifth transistor which are connected in series to each other to prevent an input load effect, wherein the DC offset compensation unit compensates a DC offset by outputting at least a portion of DC current inputted to the amplifier to ground through the third transistor and the fifth transistor when the photocurrent is an over current more than a predetermined set value. |
申请公布号 |
US9438353(B2) |
申请公布日期 |
2016.09.06 |
申请号 |
US201414585005 |
申请日期 |
2014.12.29 |
申请人 |
Industry-University Cooperation Foundation Hanyang University;OE Solutions Co., Ltd. |
发明人 |
Yun Tae-Yeoul;Park Moon Soo;Lee Ji-Young;Lee Ji-Young;Park Jun-Young |
分类号 |
H04B10/00;H04B10/69 |
主分类号 |
H04B10/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. An optical communication receiver, comprising:
an optical signal detector; an amplifier inputted with a photocurrent outputted from the optical signal detector; and a DC offset compensation unit provided therein with a third transistor and a fifth transistor which are connected in series to each other to prevent an input load effect, wherein the DC offset compensation unit compensates a DC offset by outputting at least a portion of DC current inputted to the amplifier to ground through the third transistor and the fifth transistor when the photocurrent is an over current more than a predetermined set value. |
地址 |
Seoul KR |