数码调光暗室灯的设计

Design of the Digital Darkroom Lamp Dimmer

目的暗室灯亮度可根据需要调节,是暗室冲洗胶片时的理想工具。方法应用单片机去量化控制晶闸管的导通角,从而达到调光的目的。结果白炽灯的亮度得到了近乎连续调光的效果,而且很明确是百分之几的功率。结论微处理器的编程相当灵活,可编程性非常好,内部资源比较丰富,成本低,功耗更低,可扩充性好,也可以反复编程。

Objective Darkroom lamp is an ideal tool of film processing,whose brightness can be adjusted as needed.Methods Using MCU to quantitatively control the conduction angle of thyristor,thus to achieve the purpose of dimming.Results The brightness of incandescent lamps has been almost continuously dimmed,and the power percentage is quite clear.Conclusion Microprocessor programming is quite flexible,and the programmability is very good.Its internal resources are relatively abundant,low-cost,lower-power consumption,good-scalability,and can also be programmed repeatedly.