Constant voltage
Channel: HomoFaciens
Date: 2013-01-31

Table of content:
00:12 Batteries
00:50 Inner resistance
02:25 Inner resistance of a "generator"
02:45 Voltage divider
03:03 Stabilizer circuit (linear regulator)
06:57 Linear regulator with op-amp
07:35 Op-am and p-channel MOSFET
08:27 Low dropout regulator (LDO)
08:54 Power dissipation
09:25 Switched mode regulator
10:50 Ripple
12:03 Reducing ripple by capacitors
12:14 RC-filter
12:39 LC-filter
14:15 Constant DC current (transistor)
15:49 Constant current (op-amp)
17:12 Electrochemical reaction

More about the topic at the project page:
http://www.homofaciens.de/technics-base-circuits-constant-voltage_en_navion.htm