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本文主要介绍用时基集成电路FX555(贵州4433厂产品代号)构成三种(定时或延时)控制电路。这三种电路具有简单易作,价格低廉;可控时间范围广、精度高;负载能力强,可直接驱动多种型号的继电器工作,兼控制与执行于一体等优点。而且电路的通用性极强,可广泛用于各行各业,还可作为单脉冲信号发生器广泛用于微机控制、测试系统中以及共它需要用作同步或时统的场合。
This article describes the time base integrated circuit FX555 (Guizhou 4433 Factory product code) constitute three (timing or delay) control circuit. These three circuits have the advantages of simple and easy operation and low price; the controllable time range is wide and the precision is high; the load capability is strong, which can directly drive the operation of various types of relays, control and execution, and the like. And the circuit is extremely versatile, can be widely used in all walks of life, but also as a single pulse signal generator is widely used in computer control, test system and a total of it needs to be used as a synchronization or system of occasions.