All Questions
9
questions
0
votes
0
answers
33
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Current sensing in DC-DC converter
I studied DC-DC converter in peak/valley/average mode control and I have a question about the methodology to sense the current in average current mode control. I saw lot of paper about DCR sensing but ...
- 324
5
votes
2
answers
2k
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Idea behind current mode control in DC-DC converter
I am learning about control strategies for DC-DC converters.
While I find voltage mode control easy to understand, I struggle to understand
current mode control.
Is the idea here to control the ...
- 67
0
votes
1
answer
605
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1200w dc-dc boost converter low voltage protection not working
I've purchased a 1200w dc-dc converter with the model number SZ-BT07CCCV.
I'm using it to convert 12v from a big battery to 24V.
the converter comes with three potentiometers according to the ...
- 103
0
votes
0
answers
134
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on/off pin problems with the LM2678 5.0
PCB:
My name is Ertuğrul. I made a regulation board with an LM2678 but I have a problem: I provide 12V input but I can not get 5V output.
I only get 5V with the on/off pin enabled, but the datasheet ...
0
votes
2
answers
2k
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How does a boost converter allow for a gain in output voltage by just switching the positions of the inductor and switch?
I get that in a buck converter, a low pass LC circuit was attached and this effectively filters out high frequencies. If the bandwidth is configured so that it is lower than the switching frequency, a ...
- 469
1
vote
1
answer
83
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Current Sensing Design
while using MCP1630 in switch mode power supply design, in the datasheet they gave the input bias current of the "current sense pin"
what are the considerations the designer should take while ...
- 1,020
4
votes
1
answer
1k
views
DC-DC Converter - Why is the input voltage called Vg?
In the textbook I'm reading (Fundamentals of Power Electronics 2nd Ed, Erickson and Maksimovic), the input voltage for several different types of converter circuits is labeled Vg. The textbook gives ...
- 98
1
vote
1
answer
142
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LTC1775 Buck converter component question
I am trying to design a 12v,10A buck converter using a with LTC1775 and have gone through the calculations assuming a 40% inductor ripple current and a switching frequency of 150kHz. This gave an ...
- 15
7
votes
1
answer
1k
views
Is it possible to get a high efficiency buck-boost converter by switching between the two?
Many buck-boost converters work by boosting to an intermediate voltage, then bucking to the desired voltage. What if instead, it had a separate buck and boost section in parallel, and switched between ...
- 1,181