CAJ | 학술논문

基于数字时序控制电路原理,采用元器件设计实现了一种显示倒计时的数字竞赛抢答器.该抢答器由组合逻辑电路中的编码器、锁存器、译码器,时序逻辑电路中的计数器和555定时器组合而成.该抢答器具有手动复位功能,倒计时功能和显示功能.经测试表明,该抢答器可以准确显示倒计时时间和抢答号码,反应灵敏,工作性能稳定可靠.
기우수자시서공제전로원리,채용원기건설계실현료일충현시도계시적수자경새창답기.해창답기유조합라집전로중적편마기、쇄존기、역마기,시서라집전로중적계수기화555정시기조합이성.해창답기구유수동복위공능,도계시공능화현시공능.경측시표명,해창답기가이준학현시도계시시간화창답호마,반응령민,공작성능은정가고.
Design and Implement a digital contest responder using component, based on the digital timing-sequential control circuit principle. The responder is composed of encoder, latch, decoder in combinational logic circuit, counter and 555 timer in time-sequential logic circuit. The component has manual reset function, countdown and display features. Tests showed that the responder can accurately displays the countdown time and responder number , responsive, stable and reliable performance.