This paper introduces a new AC voltage adjustment device controlling by optocoupler relay and gives detailed analysis of it's circuit.
对一种用光耦合继电器控制的交流调压器进行了介绍和分析，给出了该调压器的特点。
Although the classic circuit of optocoupler can translate analog signal with high accuracy, but special optocoupler and several isolated power supplies must be needed.
传统的模拟信号光电隔离电路虽然能实现较高精度，但必须使用特殊的光电耦合器产品和多组互相隔离的电源。
Although the classic circuit of optocoupler can translate analog signal with high accuracy, but special optocoupler and several isolated power supplies must be needed.
传统的模拟信号光电隔离电路虽然能实现较高精度，但必须使用特殊的光电耦合器产品和多组互相隔离的电源。
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