The whole solution system includes optical attenuator, photodiode and MCU.

To connect with booster, one side is the photodiode, the other side is the MCU and mirror current source monitoring circuit. Between the mirror current source monitoring circuit and the MCU, it’s DC Signal detective circuit. The MCU is also connected by control circuit and power supply. Controlled by the MCU, and with feedback function of DC signal detective circuit, the signal is processed when it’s fed back continuously to the MCU. Through filtering the photoresponsivity, finally the coupler can scan the best efficiency of Photoelectric conversion.