All Questions
Tagged with buck power-electronics
129
questions
0
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566
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Approximation when deriving buck closed loop transfer function
Can anyone explain why \$\frac{\Delta V_x}{\Delta D} = V_{in}\$ here? It seems to me that they are assuming that \$V_x = V_o\$ ( this is only correct for average voltage). However, if they use the ...
- 1,649
0
votes
1
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346
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What drawbacks to bucking, then boosting the same current?
Are there any real negative drawbacks - outside of the double drop of efficiency - of DC-DC boosting a power line that was already DC-DC bucked?
I'm building a modular system, serially linked through ...
- 115
0
votes
1
answer
3k
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Buck converter with an IR2110
I'm making a buck converter with the following characteristics:
Input voltage: 24V
Output voltage: 5V-20V
Max current: 5A
*Constrains:
The transistor driver must be an IR2110
I have the following ...
0
votes
1
answer
116
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Buck not acting as designed
I have designed a synchronous buck converter to step down a 17.4V voltage source to 12V at the output. I have attached the schematic as shown.
Problem: The Buck is not operating as expected at all. ...
- 79
0
votes
2
answers
5k
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Buck Converter with Gate Driver
I designed a simple buck converter to meet the following specs (I have attached the schematic):
Vin = 17.4V
Vout = 12V
D = 0.69
Switching Frequency = 50kHz
Inductor Ripple Current = 20% of ...
- 79
3
votes
5
answers
607
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Ripple current in synchronous buck converter
I am designing a synchronous buck converter and I am at the bread board stage in my design. I wanted to check the current waveform through the inductor, but I do not have a current probe available. I ...
- 314
0
votes
2
answers
1k
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AC Power loss of inductor in a buck converter
I have a custom piece of equipment that gives a value for AC power loss (Pac) for an inductor plugged into an internal buck converter circuit. The custom equipment has an oscilloscope which is ...
- 314
0
votes
2
answers
4k
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How to theoretically determine ESR of a capacitor and DCR of an inductor for a buck converter?
How can we determine ESR of the capacitor and DCR of inductor theoretically in the design of buck converter, without using an LCR meter?
3
votes
1
answer
1k
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Buck Converter with resistive load
I was reading a chapter on Step down Choppers(Buck Converters). I had trouble understanding the operation of the circuit as it wasn't explained properly in the book. When I looked up on the internet , ...
- 1,177