Differences

This shows you the differences between two versions of the page.

--- user:kurser:ham_vt2023_l2 [2023/01/02 14:23] – created ETA313-02 user
+++ user:kurser:ham_vt2023_l2 [2024/02/13 18:07] (current) – user
@@ Line 1: / Line 1: @@
 =====ETA313-02: Theory lesson 1: Electric components=====
+[[user:kurser:ham_vt2024|Back to course information]]
+**Recommended reading: KonCEPT page 5-83 (chapter 1&2)**
+In this course sqrt(-1) is banned! We do not know how to derivate/integrate... and so on.
+Everything should be made as simple as possible, but not simpler
+This first lesson covers all components except the most difficult one, the transmission line. It is covered in the antenna lesson.
+  * Ohms Law. U = RI, P=UI, thermal efficiency (mu).
+  * Resistors (R)
+    * get hot
+    * P = RI^2 = U^2/R
+    * potentiometers
+  * Decibel: x dB = 10 log (power level / reference power level)  = 10 log ( [voltage^2/R]/[ref voltage^2/R] )  = 20 log (voltage/ref voltage)
+  * AC/DC/frequency/period time/wavelength= 300 / f [MHz]
+  * Capacitors (C)
+    * Z = 1/(2*pi*f*c)
+    * Energy stored = C *V^2/2
+    * Bleeder resistors
+    * Polarization
+  * Inductors (L)
+    * Z=2*pi*f*L
+    * Energy stored = L*I^2/2
+    * Use two-pole switches
+    * Transformers
+  * Memristors are ignored
+  * Series and parallel connections of R/L/C
+  * Time domain and frequency domain -> filters (Focus less on this next time)
+    * Low pass RC or LC
+    * High pass CR or CL
+    * Band pass (L+C)
+    * Band stop (L+C)
+    * All-pass!?
+  * Resonance
+    * parallel resonance
+    * Series resonance
+    * Q
+    * Crystals
+  * Electron tubes
+    * Diode
+    * Triode
+  * Semiconductors
+    * Diode
+    * Zener diode
+    * Bipolar transistor, PNP, NPN, current gain
+    * MOSFET transistor, n-channel, p-channel.
+  * Rectification
+    * u_peak_DC = u_rms_AC*sqrt(2) = u_peak_AC