摘要：一个电阻反馈网络经常被用来设置输出电压的电源。一个机械电位器（壶） ，方便地解决问题，调整电源。为了更方便地自动校准，机械锅可以用数字电位器取代。本应用笔记介绍了校准解决方案，采用了数字电位器，因为数字电位器小，随着年龄的增长或振动不动，并且可以远程重新调整。这个建议的解决方案降低了系统的最终数字电位器的端到端电阻的容差的敏感度，使设计师的最佳解决方案。本应用笔记中还介绍了一些需要计算电阻链的价值，并以这种方式使用的数字电位器的方程。一个与标准reisistor值的电子表格是容易计算。Maxim > Design Support > Technical Documents > Application Notes > Digital Potentiometers > APP 4936
Keywords: power supply, calibrate, calibration, voltage reference, digital potentiometer, digipot, mechanical potentiometer, resistive
feedback
Apr 20, 2012
APPLICATION NOTE 4936
Calibrating a Power Supply with a Digital Potentiometer
By:David Fry, Strategic Applications Engineering Manager
Apr 20, 2012
Abstract:A resistive feedback network is often used to set the output voltage of a power supply. A mechanical potentiometer (pot)
conveniently solves the problem of adjusting a power supply. For easier automatic calibration, a mechanical pot can be replaced with
a di……
