摘要
数字电子钟是一个对标准频率(1Hz)进行计数的计数电路。由振荡电路形成秒脉冲信号,秒脉冲信号输入计数器进行计数,并把累计结果以"时"、"分"、"秒"的数字显示出来。秒计数器电路计满60后触发分计数器电路,分计数器电路计满60后触发时计数器电路,当计满24小时后又开始下一轮的循环计数。由振荡电路、计数器、数码显示器、校时电路、整点报时电路等几部分组成。
Digital electronic clock is a counting circuit for counting standard frequency （1Hz）. The second pulse signal formed by an oscillating circuit is input into a counter to be counted, and the cumulative results are displayed with ＂hour＂, ＂minute＂, ＂ second＂ in digital form. The second counter circuit triggers minute counter circuit after the count achieves 60, and the minute counter circuit triggers hour counter circuit after the counter achieves 60, when the count achieve 24 next round of cycle starts. The clock is composed of oscillation circuit, counter, digital display, timing circuit, and integral hour warning circuit
出处
《电子技术（上海）》
2012年第8期60-62,共3页
Electronic Technology
关键词
数字钟
振荡
计数
校准
报时
digital clock
oscillation
counting
calibration
chime
作者简介
徐连成，泰安市高级技校电气系，讲师，研究方向：电子和单片机手机：13561751353电子信箱：LIANCHENGYIPIAN@163．COM 联系地址：山东省泰安市向阳路197号泰安市高级技校电气系徐连成收（271000）
