What does a bar symbol in parallel with a single inductor indicate?












5












$begingroup$


Some circuits have parallel bars on their inductor symbols such as:



Enter image description here



Does that mean the inductor is wound around a magnetic core instead of air? Is that how a differential choke is represented?






inductor







share|improve this question











$endgroup$

















    5












    $begingroup$


    Some circuits have parallel bars on their inductor symbols such as:



    Enter image description here



    Does that mean the inductor is wound around a magnetic core instead of air? Is that how a differential choke is represented?






    inductor







    share|improve this question











    $endgroup$















      5












      5








      5





      $begingroup$


      Some circuits have parallel bars on their inductor symbols such as:



      Enter image description here



      Does that mean the inductor is wound around a magnetic core instead of air? Is that how a differential choke is represented?






      inductor







      share|improve this question











      $endgroup$




      Some circuits have parallel bars on their inductor symbols such as:



      Enter image description here



      Does that mean the inductor is wound around a magnetic core instead of air? Is that how a differential choke is represented?






      inductor




      inductor






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 19 at 12:01









      Peter Mortensen

      1,60031422




      1,60031422










      asked Jan 18 at 20:23









      cm64cm64

      411112




      411112






















          4 Answers
          4






          active

          oldest

          votes


















          5












          $begingroup$

          Typically yes. The bar is used to indicate some form of ferrous core.



          enter image description here



          https://www.conceptdraw.com/How-To-Guide/inductors-symbols






          share|improve this answer









          $endgroup$





















            4












            $begingroup$

            A solid bar indicates a ferrous core (core made of a ferrous metal, such as iron).



            A dashed bar indicates a ferrite core.






            share|improve this answer











            $endgroup$













            • $begingroup$
              ferrous core never heard of it. did you mean fameous?
              $endgroup$
              – cm64
              Jan 18 at 20:40












            • $begingroup$
              @cm64 What Electron means is a core made of a ferrous metal, such as iron or steel.
              $endgroup$
              – Hearth
              Jan 18 at 20:41










            • $begingroup$
              yes.. iron or steel based core
              $endgroup$
              – Electron
              Jan 18 at 20:42








            • 2




              $begingroup$
              yes.. air core colis will have much more less inductance when compared to iron or ferrite core inductors.
              $endgroup$
              – Electron
              Jan 18 at 20:49






            • 2




              $begingroup$
              "Ferrous", made of ferrum, chemical symbol Fe, latin for iron.
              $endgroup$
              – Transistor
              Jan 18 at 20:53





















            2












            $begingroup$

            I see this convention for ferrites such as in the filter you show, tho I can't seem to find an official source indicating this is an official standard of some kind.






            share|improve this answer









            $endgroup$





















              1












              $begingroup$

              Well, IEEE Std 315 specifies this symbol for an inductor with a "magnetic core":



              inductor with core, symbol from IEEE Std 315



              The standard doesn't show any symbols with a single bar, at least as far as I can see.






              share|improve this answer









              $endgroup$













              • $begingroup$
                When I was a boy, British laminated FeSi cores had three lines; ferrite cores were a single dashed or sometimes dotted line.
                $endgroup$
                – Michael Harvey
                Jan 19 at 11:58










              • $begingroup$
                @MichaelHarvey Yes, I have also seen many variations over the years. I just wanted to point out that there really is a standard way of drawing these things.
                $endgroup$
                – Elliot Alderson
                Jan 19 at 12:02











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              4 Answers
              4






              active

              oldest

              votes








              4 Answers
              4






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              5












              $begingroup$

              Typically yes. The bar is used to indicate some form of ferrous core.



              enter image description here



              https://www.conceptdraw.com/How-To-Guide/inductors-symbols






              share|improve this answer









              $endgroup$


















                5












                $begingroup$

                Typically yes. The bar is used to indicate some form of ferrous core.



                enter image description here



                https://www.conceptdraw.com/How-To-Guide/inductors-symbols






                share|improve this answer









                $endgroup$
















                  5












                  5








                  5





                  $begingroup$

                  Typically yes. The bar is used to indicate some form of ferrous core.



                  enter image description here



                  https://www.conceptdraw.com/How-To-Guide/inductors-symbols






                  share|improve this answer









                  $endgroup$



                  Typically yes. The bar is used to indicate some form of ferrous core.



                  enter image description here



                  https://www.conceptdraw.com/How-To-Guide/inductors-symbols







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jan 18 at 20:34









                  JonRBJonRB

                  13.5k22140




                  13.5k22140

























                      4












                      $begingroup$

                      A solid bar indicates a ferrous core (core made of a ferrous metal, such as iron).



                      A dashed bar indicates a ferrite core.






                      share|improve this answer











                      $endgroup$













                      • $begingroup$
                        ferrous core never heard of it. did you mean fameous?
                        $endgroup$
                        – cm64
                        Jan 18 at 20:40












                      • $begingroup$
                        @cm64 What Electron means is a core made of a ferrous metal, such as iron or steel.
                        $endgroup$
                        – Hearth
                        Jan 18 at 20:41










                      • $begingroup$
                        yes.. iron or steel based core
                        $endgroup$
                        – Electron
                        Jan 18 at 20:42








                      • 2




                        $begingroup$
                        yes.. air core colis will have much more less inductance when compared to iron or ferrite core inductors.
                        $endgroup$
                        – Electron
                        Jan 18 at 20:49






                      • 2




                        $begingroup$
                        "Ferrous", made of ferrum, chemical symbol Fe, latin for iron.
                        $endgroup$
                        – Transistor
                        Jan 18 at 20:53


















                      4












                      $begingroup$

                      A solid bar indicates a ferrous core (core made of a ferrous metal, such as iron).



                      A dashed bar indicates a ferrite core.






                      share|improve this answer











                      $endgroup$













                      • $begingroup$
                        ferrous core never heard of it. did you mean fameous?
                        $endgroup$
                        – cm64
                        Jan 18 at 20:40












                      • $begingroup$
                        @cm64 What Electron means is a core made of a ferrous metal, such as iron or steel.
                        $endgroup$
                        – Hearth
                        Jan 18 at 20:41










                      • $begingroup$
                        yes.. iron or steel based core
                        $endgroup$
                        – Electron
                        Jan 18 at 20:42








                      • 2




                        $begingroup$
                        yes.. air core colis will have much more less inductance when compared to iron or ferrite core inductors.
                        $endgroup$
                        – Electron
                        Jan 18 at 20:49






                      • 2




                        $begingroup$
                        "Ferrous", made of ferrum, chemical symbol Fe, latin for iron.
                        $endgroup$
                        – Transistor
                        Jan 18 at 20:53
















                      4












                      4








                      4





                      $begingroup$

                      A solid bar indicates a ferrous core (core made of a ferrous metal, such as iron).



                      A dashed bar indicates a ferrite core.






                      share|improve this answer











                      $endgroup$



                      A solid bar indicates a ferrous core (core made of a ferrous metal, such as iron).



                      A dashed bar indicates a ferrite core.







                      share|improve this answer














                      share|improve this answer



                      share|improve this answer








                      edited Jan 19 at 12:01









                      Peter Mortensen

                      1,60031422




                      1,60031422










                      answered Jan 18 at 20:38









                      ElectronElectron

                      1,675316




                      1,675316












                      • $begingroup$
                        ferrous core never heard of it. did you mean fameous?
                        $endgroup$
                        – cm64
                        Jan 18 at 20:40












                      • $begingroup$
                        @cm64 What Electron means is a core made of a ferrous metal, such as iron or steel.
                        $endgroup$
                        – Hearth
                        Jan 18 at 20:41










                      • $begingroup$
                        yes.. iron or steel based core
                        $endgroup$
                        – Electron
                        Jan 18 at 20:42








                      • 2




                        $begingroup$
                        yes.. air core colis will have much more less inductance when compared to iron or ferrite core inductors.
                        $endgroup$
                        – Electron
                        Jan 18 at 20:49






                      • 2




                        $begingroup$
                        "Ferrous", made of ferrum, chemical symbol Fe, latin for iron.
                        $endgroup$
                        – Transistor
                        Jan 18 at 20:53




















                      • $begingroup$
                        ferrous core never heard of it. did you mean fameous?
                        $endgroup$
                        – cm64
                        Jan 18 at 20:40












                      • $begingroup$
                        @cm64 What Electron means is a core made of a ferrous metal, such as iron or steel.
                        $endgroup$
                        – Hearth
                        Jan 18 at 20:41










                      • $begingroup$
                        yes.. iron or steel based core
                        $endgroup$
                        – Electron
                        Jan 18 at 20:42








                      • 2




                        $begingroup$
                        yes.. air core colis will have much more less inductance when compared to iron or ferrite core inductors.
                        $endgroup$
                        – Electron
                        Jan 18 at 20:49






                      • 2




                        $begingroup$
                        "Ferrous", made of ferrum, chemical symbol Fe, latin for iron.
                        $endgroup$
                        – Transistor
                        Jan 18 at 20:53


















                      $begingroup$
                      ferrous core never heard of it. did you mean fameous?
                      $endgroup$
                      – cm64
                      Jan 18 at 20:40






                      $begingroup$
                      ferrous core never heard of it. did you mean fameous?
                      $endgroup$
                      – cm64
                      Jan 18 at 20:40














                      $begingroup$
                      @cm64 What Electron means is a core made of a ferrous metal, such as iron or steel.
                      $endgroup$
                      – Hearth
                      Jan 18 at 20:41




                      $begingroup$
                      @cm64 What Electron means is a core made of a ferrous metal, such as iron or steel.
                      $endgroup$
                      – Hearth
                      Jan 18 at 20:41












                      $begingroup$
                      yes.. iron or steel based core
                      $endgroup$
                      – Electron
                      Jan 18 at 20:42






                      $begingroup$
                      yes.. iron or steel based core
                      $endgroup$
                      – Electron
                      Jan 18 at 20:42






                      2




                      2




                      $begingroup$
                      yes.. air core colis will have much more less inductance when compared to iron or ferrite core inductors.
                      $endgroup$
                      – Electron
                      Jan 18 at 20:49




                      $begingroup$
                      yes.. air core colis will have much more less inductance when compared to iron or ferrite core inductors.
                      $endgroup$
                      – Electron
                      Jan 18 at 20:49




                      2




                      2




                      $begingroup$
                      "Ferrous", made of ferrum, chemical symbol Fe, latin for iron.
                      $endgroup$
                      – Transistor
                      Jan 18 at 20:53






                      $begingroup$
                      "Ferrous", made of ferrum, chemical symbol Fe, latin for iron.
                      $endgroup$
                      – Transistor
                      Jan 18 at 20:53













                      2












                      $begingroup$

                      I see this convention for ferrites such as in the filter you show, tho I can't seem to find an official source indicating this is an official standard of some kind.






                      share|improve this answer









                      $endgroup$


















                        2












                        $begingroup$

                        I see this convention for ferrites such as in the filter you show, tho I can't seem to find an official source indicating this is an official standard of some kind.






                        share|improve this answer









                        $endgroup$
















                          2












                          2








                          2





                          $begingroup$

                          I see this convention for ferrites such as in the filter you show, tho I can't seem to find an official source indicating this is an official standard of some kind.






                          share|improve this answer









                          $endgroup$



                          I see this convention for ferrites such as in the filter you show, tho I can't seem to find an official source indicating this is an official standard of some kind.







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Jan 18 at 20:32









                          Gonzik007Gonzik007

                          2,7661023




                          2,7661023























                              1












                              $begingroup$

                              Well, IEEE Std 315 specifies this symbol for an inductor with a "magnetic core":



                              inductor with core, symbol from IEEE Std 315



                              The standard doesn't show any symbols with a single bar, at least as far as I can see.






                              share|improve this answer









                              $endgroup$













                              • $begingroup$
                                When I was a boy, British laminated FeSi cores had three lines; ferrite cores were a single dashed or sometimes dotted line.
                                $endgroup$
                                – Michael Harvey
                                Jan 19 at 11:58










                              • $begingroup$
                                @MichaelHarvey Yes, I have also seen many variations over the years. I just wanted to point out that there really is a standard way of drawing these things.
                                $endgroup$
                                – Elliot Alderson
                                Jan 19 at 12:02
















                              1












                              $begingroup$

                              Well, IEEE Std 315 specifies this symbol for an inductor with a "magnetic core":



                              inductor with core, symbol from IEEE Std 315



                              The standard doesn't show any symbols with a single bar, at least as far as I can see.






                              share|improve this answer









                              $endgroup$













                              • $begingroup$
                                When I was a boy, British laminated FeSi cores had three lines; ferrite cores were a single dashed or sometimes dotted line.
                                $endgroup$
                                – Michael Harvey
                                Jan 19 at 11:58










                              • $begingroup$
                                @MichaelHarvey Yes, I have also seen many variations over the years. I just wanted to point out that there really is a standard way of drawing these things.
                                $endgroup$
                                – Elliot Alderson
                                Jan 19 at 12:02














                              1












                              1








                              1





                              $begingroup$

                              Well, IEEE Std 315 specifies this symbol for an inductor with a "magnetic core":



                              inductor with core, symbol from IEEE Std 315



                              The standard doesn't show any symbols with a single bar, at least as far as I can see.






                              share|improve this answer









                              $endgroup$



                              Well, IEEE Std 315 specifies this symbol for an inductor with a "magnetic core":



                              inductor with core, symbol from IEEE Std 315



                              The standard doesn't show any symbols with a single bar, at least as far as I can see.







                              share|improve this answer












                              share|improve this answer



                              share|improve this answer










                              answered Jan 18 at 20:39









                              Elliot AldersonElliot Alderson

                              6,31611022




                              6,31611022












                              • $begingroup$
                                When I was a boy, British laminated FeSi cores had three lines; ferrite cores were a single dashed or sometimes dotted line.
                                $endgroup$
                                – Michael Harvey
                                Jan 19 at 11:58










                              • $begingroup$
                                @MichaelHarvey Yes, I have also seen many variations over the years. I just wanted to point out that there really is a standard way of drawing these things.
                                $endgroup$
                                – Elliot Alderson
                                Jan 19 at 12:02


















                              • $begingroup$
                                When I was a boy, British laminated FeSi cores had three lines; ferrite cores were a single dashed or sometimes dotted line.
                                $endgroup$
                                – Michael Harvey
                                Jan 19 at 11:58










                              • $begingroup$
                                @MichaelHarvey Yes, I have also seen many variations over the years. I just wanted to point out that there really is a standard way of drawing these things.
                                $endgroup$
                                – Elliot Alderson
                                Jan 19 at 12:02
















                              $begingroup$
                              When I was a boy, British laminated FeSi cores had three lines; ferrite cores were a single dashed or sometimes dotted line.
                              $endgroup$
                              – Michael Harvey
                              Jan 19 at 11:58




                              $begingroup$
                              When I was a boy, British laminated FeSi cores had three lines; ferrite cores were a single dashed or sometimes dotted line.
                              $endgroup$
                              – Michael Harvey
                              Jan 19 at 11:58












                              $begingroup$
                              @MichaelHarvey Yes, I have also seen many variations over the years. I just wanted to point out that there really is a standard way of drawing these things.
                              $endgroup$
                              – Elliot Alderson
                              Jan 19 at 12:02




                              $begingroup$
                              @MichaelHarvey Yes, I have also seen many variations over the years. I just wanted to point out that there really is a standard way of drawing these things.
                              $endgroup$
                              – Elliot Alderson
                              Jan 19 at 12:02


















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