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Op amp Fiberoptic interface circuit

2017-08-16 17:38  
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An optical fiber connector terminates the end of an optical fiber, and enables quicker connection and disconnection than splicing. The connectors mechanically couple and align the cores of fibers so light can pass. Better connectors lose very little light due to reflection or misalignment of the fibers. In all, about 100 fiber optic connectors have been introduced to the market.An op amp is used to interface between a fiberoptic system and theMOS SCR to multi-cycle, half-wave control of a load. This receiver has two complementary outputs, one at a quiescent level of about 0.6 V and the second at 3 V. By adding a 4.7 V zener in series with the return bus, the effective VqC becomes 5.3 V and also the 0.6 V output level is translated up to about 5.3V.This level is compatible with the reference input (5.9 V) of the single-ended powered op-amp acting as a comparator. The fiber optic interface circuit comprises an optical receiver coupled to a fiber optic cable for receiving optical signals from the image storage unit that converts them into corresponding electrical signals. An optical transmitter is coupled to a second fiber optic cable for converting electrical signals derived from the computer into optical signals and for transmitting them to the image storage unit.
 

Fiberoptic interface