摘要： 电阻式反馈网络经常用来设置输出电压的电源。机械电位器 (罐) 方便地解决调整电源的问题。为方便的自动校准、 机械锅可以替换成数字锅。本应用指南介绍了校准解决方案，它使用数字锅，因为 digipots 是规模较小，不会随年龄或振动、 移动和可以远程要重新校准。这项拟议的解决方案降低了数字锅端到端阻力，制作设计师最优解决方案中的容错系统的敏感性。本应用程序说明还解释了一些计算的电阻链值和使用这种方式的数字锅所需的方程。可很容易计算标准 reisistor 的值与电子表格。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……
