光电二极管的应用电路 很典型.pdf

Application circuit examples of Si photodiode 1. Low noise light-sensitive preamplifier Used in receivers for spatial light transmission and optical remote control. +15 V A reverse bias is applied to the photodiode to improve frequency 10 k 10 µ + 10 µ + response. This circuit outputs an amplified signal from the FET drain, but 1 k 0.1 µ signals can also be extracted from the source side for interface to the next 0.1 µ Vo stage circuit with low input resistance. PD 1000 p FET RL 1 M RS 0.1 µ