課程設計數字電子鐘(參考版)
2025-06-21 12:47本頁面
【正文】 參 考 文 獻（1）: （2）. 基于Multisim ，第二期3334The Design of Digital ClockLiang Aidi Liang Jiaan Lu Hongju（College of Engineering，South China Agricultural University Guangzhou 510642,China）Abstract: In the life of the various occasions often used electric clock, the rapid development of modern electronic technology, products of intelligent digital circuit, and the corresponding with the simple circuit, high reliability and low cost advantages, the design of digital circuit design as the core in intelligent electric clock.A digital clock is adopted, the realization of digital circuit, second readier digital display timer, widely used in individual family, station, wharf and public places such as office, as people daily life necessities, due to the development of digital IC quartz crystal oscillator and extensive application of the digital clock, the precision, clocks, watches over old shipped to the digital production and life bring great convenience, and greatly expanded the clock chime of the original function. Therefore, the digital clock and expand their application, has very realistic significance. This circuit design by timing circuit, dynamic display circuit, control circuit and display circuit ponents in the digital display tube, 24 hours timer, has cleared, maintain, school, working function, and based on this week showed increased the function.Digital clock frequency signal should be standard is stable, so 1HZ seconds to set standards pulse time source. Digital clock cycle is 24 hours, and therefore must be set by the counter, 24 hours for 60 seconds, mold and die counter and counter for 24 when the counter position, second, points, seven period by digital tube display. For digital clock with standard time, when the school when the circuit is indispensable. Design switch control when the school directly with second pulse successively in time, and points counter for school when operating. Viewers can chime in 50 seconds from 59, every 2 seconds to send a signal of du, continuously five times, the signal is punctual to end.Key words：digital clock timing give the correct time附錄1表1 元器件清單元件名稱 數量 萬能板 1雙位共陰極7段數碼管 3 CD4511集成塊 6CD
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