From 1eac9f6b170b4f51e30218a5571da5b54655f700 Mon Sep 17 00:00:00 2001
From: Tyler Perkins <tperki17@kent.edu>
Date: Wed, 26 Jan 2022 14:15:01 -0500
Subject: [PATCH] Update for 26-01-22 14:15

---
 tech/Inductor.wiki     | 12 ++++++++++++
 tech/Transformers.wiki | 26 ++++++++++++++++++++++++++
 tech/electronics.wiki  |  1 +
 3 files changed, 39 insertions(+)
 create mode 100644 tech/Transformers.wiki

diff --git a/tech/Inductor.wiki b/tech/Inductor.wiki
index 5ccca2f..aa87e93 100644
--- a/tech/Inductor.wiki
+++ b/tech/Inductor.wiki
@@ -26,3 +26,15 @@ Different types of inductors lend themselves to different applications.
   * RF transmitters
 
 == Parallel and Series ==
+
+When in series, the total inductors value is added together.
+
+When in parallel, the total inductance is equal to the reciprical of the sum of
+recipricals. This means that for three inductors L1 L2 and L3, the total
+inductance of them in parallel is
+
+Total = 1/(1/L1 + 1/L2 + 1/L3)
+
+== Also see ==
+
+[[Transformers]]
diff --git a/tech/Transformers.wiki b/tech/Transformers.wiki
new file mode 100644
index 0000000..c73e686
--- /dev/null
+++ b/tech/Transformers.wiki
@@ -0,0 +1,26 @@
+= Transformers =
+
+Transformers are an application of mutual inducatance, caused by inductors.
+Transformers transfer power between two inductors that share a mutual core.
+Two sets of windings (giving winding is primary, pulling winding is secondary)
+are used and rated in the given direction, however it works both ways.
+
+By using different amounts of windings on each side we can step up or down
+voltage and current. This is because the same amount of energy is on both
+sides, however if there are fewer turns then the energy is more concentrated,
+leading to a step up transformer.
+
+The relationship between input and output voltages are based upon the primary
+winding N,,p,, to the number of turns on the secondary winding N,,s,,. The
+relationship with their voltages _E_ is shown below
+
+E,,s,, / E,,p,, = N,,s,, / N,,p,,
+
+E,,s,, = E,,p,, * N,,s,, / N,,p,,
+
+Example,
+
+What is the voltage across a 500 turn secondary if 120V is across a 2250 turn
+primary?
+
+120V * 500 / 2250
diff --git a/tech/electronics.wiki b/tech/electronics.wiki
index 60a6b63..84a359d 100644
--- a/tech/electronics.wiki
+++ b/tech/electronics.wiki
@@ -37,6 +37,7 @@ Also see
 * [[Capacitor]]
 * [[Inductor]]
 * [[Fuse]]
+* [[Transformers]]
 
 == AC/Radio ==