Energy is transferred between the coils by the magnetic field in the core, there is no electrical connection between the coils.
Download Schematic Symbol Two Circles PNG. In this case, it is being used to sink a certain minimum amount of current through the output transistor, in order to keep its dynamic impedance low and improve the overall frequency response. This time, i made a square so that the reference point(circle and cross mark).
How to Read a Schematic - learn.sparkfun.com from cdn.sparkfun.com
Energy is transferred between the coils by the magnetic field in the core, there is no electrical connection between the coils. Learn about hydraulic schematic symbols with this hydraulics lesson. I was reading this post abound operational amplifier power supplies and one of the schematics provided in the answers had a symbol with two circles on it that i haven't seen before (the one just under v_in in the picture).
Two circles overlapping (5 answers).
Complete circuit symbols of electronic components. In electronic circuits, there are many electronic symbols that are used to represent or identify a basic electronic or electrical device. Two overlapping circles represents a current source. Some of the schematic symbols in these libraries have changed!
