摘要： 32 分路、 线性锥度的数字电位器作为可变电阻器的电压分压器，连接到 DIM （操作系统作为电磁的 PWM 驱动程序） 的 LED 驱动程序的输入。电路驱动器螺线管从 6V 直流至 40V 直流，使用只电磁 6V 40V 直流源等。Maxim > App Notes > Digital Potentiometers Display Drivers LED Lighting Keywords: proportional-control solenoids, LED drivers, solenoid drivers, digital potentiometers, pulse-width modulation, PWM Nov 05, 2010 APPLICATION NOTE 4503 Driver Provides Proportional Solenoid Control Without PLC or C By:Phill Leyva Robert Brewer Abstract:A 32-tap, linear-taper digital potentiometer acts as a variable resistor in a voltage divider, connected to the DIM input of an LED driver (operating as a PWM driver for the solenoid). The circuit drives solenoids ranging from 6V DC up to 40V DC, using only the solenoid's 6V to 40V DC source. A similar version of this article appeared in the August 14, 2008 issue of Electronic Design magazine. The proportional-control solenoids found in some industr……