| 摘要 |
<p>This disclosure relates to a balanced light detector and related method The balance light detector includes a first photodiode adapted to generate a first current based on a first received light, a first transimpedance amplifier adapted to generate a first AC voltage based the first current, a second photodiode adapted to generate a second current based on a second received light, a second transimpedance amplifier adapted to generate a second AC voltage based the first current, a control module adapted to control a gain of the first transimpedance amplifier based on a gam-adjusted difference between rectified first and second AC voltages, and a differential device adapted to generate an output signal based on a difference between the first and second AC voltages The control module may be configured to control the gain of the first transimpedance amplifier in order to improve the rejection of common mode noise</p> |
