基于斯密特触发器的单脉冲及连续脉冲双模态发生器

Schmitt Trigger Based Dual-mode Generator with Monopulse and Continuous Pulse

设计一种能够产生单脉冲及连续脉冲的双模态发生器。采用施密特触发器N_1～N_4、开关、电阻、电容、电位器等元件,在集成电路74LS132上实施电气设计。当开关轻触时,触发器N_1用于产生单脉冲;当开关短接时,触发器N_2用于产生任意数量的连续脉冲;N_3和N_4用于实现信号整形和噪声消除。电路结构简洁,耗电仅为数毫安,能够很好地适用于工业控制中的一些特殊应用。

A dual-mode generator capable of generating monopulse and continuous pulse is designed. Using components including Schmidt trigger N1-N4, switches, resistors, capacitors, potentiometers, the electrical design is implemented on the integrated circuit 74LS132. When the switch is touched, the trigger N1 is used to produce a monopulse; when the switch is short connected, the trigger N2 is used to produce continuous pulses of any amount; N3 and N4 are used for signal shaping and noise elimination. The circuit structure is simple and the power consumption is only a few mA. It can be well applied to some special applications in the industrial control.