图1是一个0～50兆赫的高速施密特触发电路,用电流工作方式使晶体管保持在非饱和状态,从而消除了存储时间延迟。上升与下降时间都<6毫微秒。在 T_1接通时,稳压二极管使晶体管 T_2的基极电压约为零伏,而发射极的电流为 Figure 1 shows a high-speed Schmitt trigger circuit from 0 to 50 MHz that uses current-mode operation to keep transistors in a non-saturated state, thereby eliminating memory latency. Both rising and falling times are <6 ns. When T_1 is on, the Zener diode causes the base voltage of transistor T_2 to be approximately zero volts, while the emitter current is