Circuit Break - A MacroFab Podcast

MEP EP#225: Clipping and Clamping OpAmps

Listen Later

MEP EP#225: Clipping and Clamping OpAmps

Stephen

  • DC heaters continued
    • Tested the new values
    • Last episode was shooting for ~250mW of dissipation in the regulator and transistor
    • Measuring closer to 350mW
      • Quiescent current and some balancing and tolerance
      • Opamp clamping circuit
        • A useful voltage clamping circuit with independent upper and lower thresholds
        • Pros
          • Much more accurate than the simple clipping circuits
          • Hard turn on characteristics
          • Can be overdriven without much issues
          • Not terribly expensive
          • Downsides
            • 3 or 4 opamps needed
            • Not particularly fast - starts to show issues past 20k and is pretty bad at 30k
            • Small overshoot that is frequency dependent
            • Does not work with opamps that have input protection diodes

              • Parker

              • Brewery Updates!
                • Installed
                  • Tubing
                  • Pumps
                  • Pots
                  • Waiting on
                    • Stainless mesh basket
                    • What is left
                      • Design and build the grain crane
                      • Mount electrical box
                      • Finish wiring
                      • Paint and sealant
                      • Electrical Box
                        • Might have put the power input in the wrong spot!
                        • Need to finish the wiring.. Need to order more wire I think...

                          • R.F.O.

                          • Rules of thumb - Are they obsolete?
                          • Next week we have Al Williams on from Hack a Day
                            • If anyone has any questions for him let us know in slack!
                              • ...more
                              View all episodesView all episodes
                              Download on the App Store
                              Circuit Break - A MacroFab PodcastBy MacroFab, Inc.
                              • 4.8
                              • 4.8
                              • 4.8
                              • 4.8
                              • 4.8

                              4.8

                              37 ratings

                              More shows like Circuit Break - A MacroFab Podcast

                              View all
                              The Changelog: Software Development, Open Source by Changelog Media

                              The Changelog: Software Development, Open Source

                              286 Listeners

                              The Amp Hour Electronics Podcast by The Amp Hour (Chris Gammell and David L Jones)

                              The Amp Hour Electronics Podcast

                              230 Listeners

                              Embedded by Logical Elegance

                              Embedded

                              188 Listeners

                              Making It With Jimmy Diresta, Bob Clagett and David Picciuto by I Like To Make Stuff

                              Making It With Jimmy Diresta, Bob Clagett and David Picciuto

                              1,675 Listeners

                              Talk Python To Me by Michael Kennedy

                              Talk Python To Me

                              584 Listeners

                              Hacked by Hacked

                              Hacked

                              176 Listeners

                              HVAC School - For Techs, By Techs by Bryan Orr

                              HVAC School - For Techs, By Techs

                              1,005 Listeners

                              Python Bytes by Michael Kennedy and Brian Okken

                              Python Bytes

                              212 Listeners

                              Ham Radio Workbench Podcast by Ham Radio Workbench

                              Ham Radio Workbench Podcast

                              189 Listeners

                              Hackaday Podcast by Hackaday

                              Hackaday Podcast

                              64 Listeners

                              The Electromaker Show by Electromaker

                              The Electromaker Show

                              8 Listeners

                              Safety Third by Safety Third

                              Safety Third

                              667 Listeners

                              Oxide and Friends by Oxide Computer Company

                              Oxide and Friends

                              47 Listeners

                              The EEcosystem Podcast by Judy Warner

                              The EEcosystem Podcast

                              3 Listeners

                              The Bootloader by Paul Cutler and Tod Kurt

                              The Bootloader

                              3 Listeners