基于通用阵列逻辑芯片GAL的光电编码器倍频技术

The Encoder Frequency Quadruplicating Technique Based on the GAL Chip

光电编码器广泛应用在转角、转速测量中,但为了提高测量精度常需要对其输出脉冲进行倍频。为此,笔者提出了一种基于GAL`的高精度、简单、可靠的四倍频鉴相电路,并结合牙颌量仪的例子,介绍了具体的电路设计方案。

Photoelectric Encoders are widely used in angular displacement and velocity detecting. In order to obtain high accuracy, its output signals need to be multiplied. A new simple and reliable approach with high accuracy of frequency quadruplicating technique based on the GAL chips is put forward. The typical circuit is introduced in this paper.