Kevin Weddle Posted December 29, 2013 Report Share Posted December 29, 2013 This is a preliminary design of a variable power supply I might develop. All ideas and comments are welcome. Quote Link to comment Share on other sites More sharing options...
audioguru Posted January 3, 2014 Report Share Posted January 3, 2014 This is a preliminary design of a variable power supply I might develop. All ideas and comments are welcome.Please post its schematic and parts list. Quote Link to comment Share on other sites More sharing options...
Kevin Weddle Posted January 19, 2014 Author Report Share Posted January 19, 2014 I changed the opamp load resistor from 100K to 200K. But of course the voltage regulation is no where near as good as the 30V Stabilized Power Supply. Quote Link to comment Share on other sites More sharing options...
audioguru Posted January 19, 2014 Report Share Posted January 19, 2014 I changed the opamp load resistor from 100K to 200K. But of course the voltage regulation is no where near as good as the 30V Stabilized Power Supply.The output of an opamp is class-AB push-pull so it does not need a load resistor.Where is your schematic and parts list? Quote Link to comment Share on other sites More sharing options...
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