Changes between Version 7 and Version 8 of ControlSystems/Electrical/Training/Components/Inductors

Timestamp:

Nov 27, 2020, 4:55:40 PM (5 years ago)

Author:

David Albert

Comment:

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ControlSystems/Electrical/Training/Components/Inductors

@@ -12 +12 @@
 The schematic (logical) symbol for an inductor is: [[Image(inductor-symbol.jpg, 100px, margin=10)]]
 
-The key things about inductors that will help you understand how they are used in circuits:
+Some key things about inductors that will help you understand how they are used in circuits:
 * When you connect a power source to one side of an inductor, the voltage immediately appears at the output. However when you start to draw current (electrons) through the inductor, a magnetic field builds around the inductor before electrons start flowing through to the output. If current continues to flow, the magnetic field will eventually saturate and electrons will then flow unimpeded through the inductor (i.e. at that point it looks and behaves just like a wire with no inductance).  During the time the magnetic field is building, the inductor **impedes** (resists) the increasing flow of current.
 * When the flow of current through an inductor decreases, the magnetic field collapses into the inductor, increasing the force on the electrons (raising the voltage and forcing electrons to flow) until the field has collapsed at which point the inductor again looks like a wire.  During the time the magnetic field is collapsing, the inductor **impedes** (resists) the decreasing flow of current.
@@ -20 +20 @@
 
 In summary: inductors impede (resist) ''changes'' in current and capacitors impede ''changes'' in voltage.  Both do so in a time-dependent way.  The intuitive way to think about this is that inductors "try to maintain the same current flow" and capacitors "try to maintain the same voltage"
+
+Additional reading related to inductors:
+  * [https://www.electronics-tutorials.ws/transformer/transformer-basics.html Transformers] are used to increase/decrease AC voltages efficiently
+  * [https://control.com/textbook/ac-electricity/antennas Resonant circuits]
+  * [https://www.electronics-tutorials.ws/power/switch-mode-power-supply.html Switch-mode power supplies] [https://en.wikipedia.org/wiki/Buck_converter wikipedia] are used to increase/decrease DC voltages efficiently