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The computer connector LEV coupling circuit of photoelectric

2014-11-12 11:23  
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The computer connector LEV coupling circuit of photoelectric couplers
In computer systems, all kinds of semi-conductor logic circuits are connected with consciousness, and the different logic circuits requires different power supply voltages. Therefore, different logic circuits can be inter-connected, which is done after the LEV shifting, and it can be fulfilled by photoelectric couplers. For example, TTL integrated circuit characterizes fast speed and low price, etc, which is suitable for the computing part of the computer and the HTL circuit with high anti-disturbance, and it can normally work in the environment of high noise voltages.