All Questions
27
questions
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
118
views
AP63203 Buck not working
Recently I have been experimenting with the AP63203, and I just have not been able to get it to output 3.3V successfully. Currently, the way I have been testing it is using an SMT to TH adapter, which ...
- 1
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
1
answer
132
views
Output Capacitor Design for a Multiphase Buck Converter
According to this application note from Texas Instruments, in the design of the output filter for a multiphase buck converter there are basically two ways of choosing the output capacitor. The first ...
2
votes
3
answers
1k
views
Buck converter adjustable output-voltage using digital potentiometer [closed]
I am trying to design a buck converter using an LM2576HV (Vref: 1.23 V) and a digital potentiometer (input: 48 V, output: 0 to 48 V, Imax= 3 A).
The digital potentiometer with the highest supply ...
- 21
0
votes
2
answers
198
views
Design that outperforms buck converter
Above is quoted from here. I was just shocked to find out that the first image provides a much more efficient and simpler way to step down a voltage instead of using a buck converter circuit (second ...
1
vote
1
answer
152
views
DC-DC converter circuit LM5164
I would like to build a DC-DC converter circuit using EasyEDA that can output about 80V from 7 Nissan Leaf battery modules that are about 55V nominal.
I am looking at the datasheet for the LM5164 and ...
- 339
4
votes
3
answers
118
views
Looking for help choosing a voltage converter / regulator for microcontroller [closed]
I am designing a board that will need 3.3 V, 2.8 V, 1.5 V, and ideally 1.2 V rails. The board will be powered by a 12 V power supply so for stepping from 12 V to 3.3 V I am planning on using a buck ...
2
votes
3
answers
164
views
Buck Converter Theory Confusion
For a buck converter, I'm having a hard time conceptually understanding what is happening.
Here's my thought process: When the switch is closed, their is a positive voltage across the inductor equal ...
- 393
1
vote
0
answers
80
views
Buck input decoupling capacitance and efficiency
I'm working on an high frequency buck (>10 MHz) and there's a problem with the input decoupling capacitance, the one used to filter battery harmonics and have a more stable voltage with less ripple....
- 61
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
0
votes
2
answers
302
views
How to create a high power buck converter power supply? [closed]
I am building a device that requires a lot of energy at its peak, about 30W.
The kind of supply I want to build looks like this:
I understand that this is made of a controller which switches a ...
- 360
0
votes
4
answers
246
views
Best option from 30–60V to 3V3
I need to take power from ebike's battery (30–60VDC) for a datalogger (3V3) based on STM32 with almost no consumption.
My question is what is the most efective conversion from 60V to 3v3?
Is it good ...
- 15
0
votes
1
answer
223
views
The best way to bring drop 700VDC to 12VDC?
I am currently working on a PCB design that will be using 12VDC to power all of its components. It will be mounted on a vehicle, which is powered by an external power supply, which supplies the ...
- 57
1
vote
1
answer
251
views
Power a guitar pedal (usually takes 9V power) with a single AA battery
This is not necessarily for real life application, but more for the challenge: would it be possible to power an existing guitar pedal (let's say a Roland / Boss saturation, fuzz, reverb, delay, etc.) ...
- 1,946