本文介绍了一个计数频率为1200兆赫的三级二进制计数器电路。计数级间采用电感耦合来实现高速操作。此电路中采用了隧道二极管。图1(a)是隧道二极管触发电路。通常一个二极管处于高电位,而另一个处于低电位。它们随着触发脉冲交替地改变工作状态。脉冲是靠“存储”电感输入的。如图1(b)所示, This article describes a three-stage binary counter circuit with a count frequency of 1200 MHz. Counting stage using inductive coupling to achieve high-speed operation. This circuit uses a tunnel diode. Figure 1 (a) is a tunnel diode trigger circuit. Usually one diode is at high potential while the other is at low potential. They change the operating state alternately with the trigger pulse. The pulse is input by the “storage” inductor. As shown in Figure 1 (b)