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μPD883LCD(液晶显示)数字钟与LM8361LED钟组合,使它具有两种显示方式和双闹功能。电路特点:①LCD钟和LED钟分别使用电池和交流电源。LCD钟的功耗仅5mA,其显示数字比普通电子表大很多。由于采用两种显示,能发挥LED钟字形大、夜间能识读的优点。交流电源中断时,LED虽不显示,但LCD钟则继续计时和显示。②LCD钟的闹功能用于驱动扬声器发出间断的蜂鸣声。LED钟的闹功能则去驱动继电器,用它去控制其它电器。③用
The μPD883LCD (liquid crystal display) digital clock combined with the LM8361LED clock has two display modes and a dual-alarm function. Circuit Features: ① LCD clock and LED clock, respectively, the use of batteries and AC power. LCD clock power consumption is only 5mA, the digital display is much larger than the average digital watch. As a result of two kinds of display, can play a large LED bell, can read the advantages of night. When the AC power is interrupted, the LED does not display, but the LCD clock continues to time and display. ② LCD clock alarm function used to drive the speaker intermittent beep sound. LED clock alarm function is to drive the relay, use it to control other appliances. ③ use