All Questions
13
questions
0
votes
3
answers
115
views
Validate my 3V3 power system
My Power System, can someone validate it? I'm not familiar with using the TPS63060.
Datasheet can be found at: https://www.ti.com/product/TPS63060
I'm trying to power a ATMega328p-AU + 4 digit 7-...
0
votes
2
answers
109
views
Power Converter Average Modelling
This image is from Christophe Basso presentation. It has been mentioned in the slide that average model can predict the transient response but I have one question when we say average model then it ...
- 119
0
votes
1
answer
111
views
I need to make a separate buck and boost converter with 200W power rating
I have to make two converters. One buck going from 240VDC to 12VDC 30 amperes and one boost from 12VDC to 24VDC, possibly with the ability to change from 6 to 30 amperes.
A few more details: The buck ...
1
vote
0
answers
55
views
Boost converter output voltage drops
I'm using an MIC2251 (MIC2251-1YD5-TR) in a design to boost a lithium battery (3.6V-4.1V) to 5.4V for powering a small camera peripheral that requires a typical draw of 80mA. I expect that the worse ...
user220456
0
votes
3
answers
987
views
How can I run a 6.5V-100V power meter on 5V?
I have an eBay power meter (V/A/W/Wh) that is specced between DC 6.5V and 100V. It's wired with a 75mV 100A shunt, like this:
If I wanted to run the thing at 5 volts what would be the easiest way? ...
- 397
4
votes
2
answers
167
views
Buck, Boost..etc Is there always an IC for that?
First of all I am still in school so perhaps I have not been exposed to material that may answer this question for me.
I have recently become interested in power electronics. I have purchased a book ...
- 891
0
votes
1
answer
26
views
Why is WLED_SW connected to supply [closed]
I am usin this http://www.ti.com/lit/ds/symlink/tps68470.pdf and in the schematic they tell us to connect the WLED_SW through an inductor to an input supply. I though the WLED_SW(switching node) is ...
- 3
1
vote
1
answer
278
views
Single input dual output simulation help
Ive been using PSIM and there is a problem with the circle mosfet wont turn on. Ive the correct duty cycle and input voltage is higher than the threshold. Can someone simulate it on another simulator ...
- 11
2
votes
2
answers
1k
views
Two parallel CR123A batteries DC voltage converter
I selected two non rechargable CR123A lithium-manganese battery to power my project due to their ability to operate under extreme temperature. A single battery is 3V with a rated capacity of 1550mAh. ...
- 404
0
votes
1
answer
346
views
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
1
vote
1
answer
927
views
Inverting buck-boost vs. positive buck-boost
Should I use an inverting buck-boost or a positive buck-boost topology?
Input voltage range = 19-22VDC,
Output voltage range = 10-56VDC,
Application = LED driver
The app not I have says the ...
- 1,097
2
votes
2
answers
669
views
Best way to power a 3.3V circuit from 3.3V-to-5.0V source
I'm working on an add-on board that needs 3.3V power (~500mA) and should take power from its host board. The host can operate at 3.3V or 5V and I'd like to avoid using jumpers that would require the ...
- 123
2
votes
2
answers
583
views
Accepting a Range of Input Voltage that Straddles Operating Voltage
I want to design a system that runs at 5V and about 350mA. I want that system to accept an input voltage between 1.8V and 15V. How can I achieve that goal with a minimum component cost in my input ...
- 22.8k