Analog quantity conversion output module of vacuum coating evaporation source control device

The utility model relates to an analog quantity conversion output module for a vacuum coating evaporation source control device. The output module comprises a high-speed optical coupler, a digital-to-analog conversion circuit, a reference power supply circuit, four standard voltage output mode circuits, two standard current output mode circuits and an output mode selection combination circuit. Theanalog quantity conversion output module provided by the utility model is simple in structure and diverse in adjusting modes, has four standard voltage output modes, and is reliable in work. 本实用新型涉及一种用于真空镀膜蒸发源控制装置的模拟量变换输出模块，该输出模块包括高速光耦、数模转换电路、基准电源电路、四种标准电压输出模式电路、两种标准电流输出模式电路和输出模式选择组合电路。本实用新型的的模拟量变换输出模块结构简单，调节方式多样，具有四种标准电压输出模式，且工作可靠。