Challenge: Investigating Ac Signals Coupled to DC Network

AI Thread Summary
The discussion focuses on the analysis of AC signals coupled to a DC network through a capacitor, utilizing the superposition principle. It highlights the necessity of considering both bulk resistance and dynamic resistance for diodes in the calculations. The confusion arises from the belief that dynamic resistance should suffice, questioning the need for bulk resistance. The concept of Total Dynamic Resistance, which combines both resistances, is also examined. The inquiry seeks clarity on whether this approach is valid or if there are misunderstandings regarding the materials or concepts being used.
Godwin Kessy
Messages
91
Reaction score
0
I have been going through the ac signals coupled by a capacitor to a dc network.. Using superposition principle.. for solution it was shown that both bulk resistance and dynamic resistances for the diodes used are required... Why is this happening.. Since to what i know bulk resistance is approximate to dynamic resistance... having dynamic resistance no need of the bulk resistance.. Yet they sum-up both of them to get what is called Total dynamic resistance.. Am I giving a challenge hear... Or there is something wrong with me.. or the materials am using?
 
Engineering news on Phys.org
Thread 'Weird near-field phenomenon I get in my EM simulation'

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
View full post »

Thread 'EMF (Electromagnetic Field) & EHS (Electromagnetic Hyper Sensitivity)'

Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
View full post »

Similar threads

What Happens When AC and DC Signals Interact in Audio Circuits?
Replies
13
Views
2K
Resistive heating power AC vs rectified AC/DC
Replies
10
Views
4K
DC vs AC Parameters: Understanding the Difference
Replies
6
Views
7K
12V DC Motor in Light Fixture with Dimmer & 12V DC to 110V AC Inverter
Replies
21
Views
2K
AC to DC voltage doubler not working
Replies
7
Views
3K
Understanding current measurement on an irregular waveform
Replies
3
Views
2K
Heavy Amplifier Circuit Oscillation Happened
Replies
3
Views
2K
Sources of voltage ripple in buck converter
Replies
13
Views
3K
How Do You Sum Two DC Voltages in a Laser Spectroscopy Circuit?
Replies
3
Views
4K
Comparison between bulk and ac resistances of a diode.
Replies
10
Views
7K

Hot Threads

Recent Insights

Back
Top