All Questions
Tagged with modeling dc-dc-converter
7 questions
3
votes
2
answers
141
views
Is there a way to take this buck diagram and reduce it to an AC transfer function?
I am semi-dangerous with switchers but I've never really delved into the innards of them so I'd like to ask about this TPS23750 diagram. I would like to develop a model of this feedback loop of a buck ...
- 88.8k
1
vote
3
answers
552
views
Capacitance multiplier
In my device I'm using a "capacitance multiplier" to filter a DC-DC output voltage. This is my schematic:
In a Multisim simulation I've achieved the necessary output parameters, but when I ...
- 11
0
votes
1
answer
638
views
Derivation for average value input current in buck-boost converter
I am struggling with the derivation of average value of input current as below.
The image is from the lecture here (page 26).
Here is what I got so far.
How did the lecture derive the final step here?...
- 1,661
0
votes
2
answers
1k
views
hamonics and sidebands in dc-dc converter
The lecture (page 8) shows output voltage spectrum with sinusoidal modulation of duty cycle of a dc-dc converter.
I am wondering where the hamonics and sidebands come from.
For hamonics, I read ...
- 1,661
4
votes
3
answers
2k
views
Push current source through transfromer
This lecture (from page 130) shows manipulation of the buck-boost converter model into canonical form.
I am stucked at moving current source through transformer as in the picture below or from the ...
- 1,661
1
vote
1
answer
606
views
ac model for buck-boost converter
This lecture shows how to create ac model for buck-boost converter.
What I am confused is the equivalent circuit model for inductor loop equation
on page 38.
As you can see from the model, there ...
- 1,661
1
vote
2
answers
350
views
Can a system with a response Y(x) = ax + c be called linear?
I made a DC-DC converter its ideal transfer function is:
$$ V_0(D) = DV_i $$
I took measurements of its response and then made a linear regression, I got this result:
$$ V_0(D) = 0.98DV_i -0.42 $...
