All Questions
7
questions
1
vote
1
answer
73
views
Power dissipation formula
Is the below formula, present on page 26 of this buck converter correct to use?
Or should I use the formula mentioned in the 3 paragraph of this accepted answer?
- 1
2
votes
2
answers
321
views
How can I replace a potentiometer with a fixed resistor on a buck converter?
I want to use a buck converter which steps down 12 V DC to 5 V constant DV output to power my custom PCB.
I came across a buck converter in market which can do it but there is potentiometer on it ...
- 99
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
2
votes
1
answer
280
views
5V and 12V derived from a regulated 12V supply? Buck converter for 5V, in parallel with 12V load?
Apologies up front — this is super basic, but I’m sleep deprived and on a deadline for a personal project.
This is all DC. I have a 12 V input (via a wall-wart). I need 5 V to power some electronics (...
- 132
2
votes
2
answers
1k
views
Power Supply Interview Questions
I recently attended a Electronics interview.
I was asked this question - What should I take care in a buck converter layout?
One of my response was like - To place all the associated capacitors, ...
user220456
-1
votes
1
answer
254
views
Changing the feedback branch in Buck converter
I am trying to implement output voltage remote sensing in Buck converter. I am taking the feedback from the load side. I have made a circuit which can act as a local or remote as per the active ...
- 1
1
vote
1
answer
2k
views
DC-DC Step Down converter for Solar Panel
I am planning to power a 5V microcontroller through a solar panel. Solar panel's Vmax = 17.78 VDC and V(open circuit) = 21 VDC.
While selecting the appropriate buck converter, should it be rated at ...
- 15