I'd like to have my microcontroller (8051) control a 0-12V DC output voltage with up to 1A. It doesn't have to be accurate (e.g. 8bit is enough) and it doesn't have to be very clean - it's for an LED illuminator controller. I know I could use a linear regulator and an D/A converter or a digital potentiometer but I'm wondering if it would be better to use a switching regulator so I don't dissipate so much power. Any example circuits how to control a switching regulator? Any suggestions for devices? I've been looking at some Maxim chips but I'm not sure how to connect up the feedback input with the output of the D/A converter. Thanks for any hints, Andrew
How: microcontrolled 0-12V 1A output
Started by ●April 6, 2004
Reply by ●April 6, 20042004-04-06