All Questions
Tagged with dc-dc-converter buck-boost
81
questions
0
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1
answer
73
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Constant output voltage in buck-boost converters
I'm a self-taught student. I'm trying to understand the working principle of buck-boost converters in continous conduction mode.
When the switch is turned on, the equation describing the inductor is ...
- 311
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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
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36
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Buck Boost Charge Capacitor Balance
For a buck boost capacitor charge balance, I am curious if adding equation 11.7 and 11.10 is correct? Or is this the average inductor current?
- 57
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59
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How to understand MAX25431 datasheet on inductor selection?
I am trying to design a project featuring MAX25431 buck-boost converter.
After examining the datasheet I started the part selection for my application, but I have troubles understanding few details:
...
- 103
1
vote
1
answer
188
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Not able to get enough current from buck boost (sepic) converter made using TL494
I am trying to build a buckboost converter for converting 5-40v input to 5-35V output at 3A max to use it for many purposes by usign TL494. I am using a SEPIC topology as i want a non inverting output....
- 15
1
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0
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63
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Boost mode doesn’t work properly for a syncronous non-inverting buck-boost converter
I posted a related question 5 days ago. I fixed the capacitor position the same as the datasheet recommendation of the gate driver by making it connect Vb with Vs, also the one who answered my ...
- 13
2
votes
3
answers
88
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Using alkaline C cells to drive a pair of solenoids
I am working on a walking robot for my class in mechanical engineering. I have two 12 VDC solenoids that need to be actuated. Their resistance is 4 ohm so basically will require 6 amps @ 12V for the ...
- 21
2
votes
2
answers
272
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FET turn-on time in DC-DC converter
I am selecting a GaN FET for a buck-boost DC-DC converter application. The Vgs of the part I'm looking at combined with the gate charge and gate resistance lets me switch the FET on in about 5.3 ns. ...
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1
vote
4
answers
137
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Can you power 2 voltage rails simultaneously using a buck-boost converter?
I am designing a custom PCB and want to power 2 rails: a 3.3V and 5V rail, with a single 250mAh LiPo battery (3.7V) and need the 5V rail to have as stable a voltage as possible.
I understand that a ...
- 61
0
votes
1
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51
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Can I connect an off-the-shelf boost converter and a buck converter end to end?
I have a 9~15 volt source (a battery) that I need to turn into stable 12 volts efficiently. The load (a graphics card) will draw up to 200 watts. Can I just get a boost converter and a buck converter ...
- 103
2
votes
1
answer
1k
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Determining the switching frequency of a buck-boost converter
I wanted to try to design a buck-boost converter (instead of buying it) to drive an electromagnet. I have a 12 V source and I want to have an output of 24 V and at least 200 mA. As input I'm using a ...
- 311
1
vote
3
answers
130
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DC-DC boost regulator selection question (TPS61230A) [closed]
I am a product designer self-learning electrical engineering, not an electrical engineer.
In trying to design a wearable device, I've run into some difficulty in selecting a DC-DC boost regulator.
The ...
- 71
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
2
answers
471
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Find inductor for XL6019 circuit boost converter
I need a way on my PCB to step up 5V to 12V (with currents up to 2A). I've been looking at the XL6019 IC and tried to copy the design from the sample circuit of the datasheet:
I'm currently stuck at ...
- 91
3
votes
2
answers
292
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High-power, high-efficiency boost converter design
I have a task of creating a boost DC-DC converter that can convert 3-4 V input into 12-16 V output with 100 W power and high efficiency.
There is nothing similar that I could find on the internet. ...
- 183