From df476e242cdbd64ca8e1c57afe4a4eb55fec50f0 Mon Sep 17 00:00:00 2001 From: Tyler Perkins Date: Mon, 31 Jan 2022 11:56:53 -0500 Subject: [PATCH] Update for 31-01-22 11:56 --- tech/Impedance.wiki | 18 ++++++++++++++++++ tech/Rectifier.wiki | 1 + tech/electronics.wiki | 12 +++++++++--- 3 files changed, 28 insertions(+), 3 deletions(-) create mode 100644 tech/Rectifier.wiki diff --git a/tech/Impedance.wiki b/tech/Impedance.wiki index 8435a32..5a1a598 100644 --- a/tech/Impedance.wiki +++ b/tech/Impedance.wiki @@ -41,3 +41,21 @@ f is the AC signal frequency (in hz), and C is the capacitance (in f) NOTE as the frequency increases, the capacitive reactance decreases + +== Impedance matching == + +Internal impedance of a source limits its ablity to deliver power. A D cell for +example has a lower impedance than a hearing aid battery, so despite both +creating a voltage of 1.5V, the D-cell is able to deliver more current. + +When the impedance is matched between two devices the power delivery is more +efficent. Most ametuer equipment has an impedance of 50ohms, including antenna +feed points, coax, and transceivers. When this impedance does not match, +[[SWR]] is formed and can cause damage to the transceiver. + +To match the impedance of two circuits, LC circuits are used to match the +impedance. Two types are the pi and T network circuits, named such due to their +appearance. + +Impedance matching can also be performed by transformers. Imedpance +transformers do this exact task. diff --git a/tech/Rectifier.wiki b/tech/Rectifier.wiki new file mode 100644 index 0000000..81c1f2a --- /dev/null +++ b/tech/Rectifier.wiki @@ -0,0 +1 @@ += Rectifier = diff --git a/tech/electronics.wiki b/tech/electronics.wiki index 84a359d..1d78709 100644 --- a/tech/electronics.wiki +++ b/tech/electronics.wiki @@ -47,18 +47,24 @@ Also see * [[ADC]] * [[DAC]] -== Combinational == +== Practical circuits == + +* [[Rectifier]] + +== Digital logic circuits == + +=== Combinational === * [[multiplexer|Multiplexer]] -== Sequential == +=== Sequential === * [[buffer|Buffer]] * [[Flip-flop]] * [[registers|Registers]] * [[counters|Counters]] -== Theoretical/Digital Logic == +=== Theoretical === * [[K-map]]