All Questions
8
questions
1
vote
2
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680
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How can I power an ESP32 with a 54V battery using a buck converter?
I need to power an ESP32 board from a 54 V battery. For that purpose, I understand that I need to step it down to 5 V so I need to design a step-down buck converter.
I tried the following circuit ...
- 133
2
votes
1
answer
54
views
Should I avoid a switching frequency close to my target SPI or CAN frequency?
I have a kind of an open-ended question.
If I'm designing a board with a buck converter and have picked out my peripherals, and say for example I want to run my CAN FD interface at 1MHz baud and maybe ...
- 143
1
vote
0
answers
77
views
Considering the inductor in a buck DC-DC converter, how to compute the current through it?
I've been stuck for a few days to the very first point of a lab in which we analyse the behaviour of buck and boost converters. The circuit is built by the university I study in, so there is no acutal ...
6
votes
3
answers
2k
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Buck Converter dies unpredictably upon connecting power
I made a PCB for an ESP32-based solenoid controller that is powered by a 24V DC Jack. I'm using an AP63205 Buck Converter to step that input down to 5V DC, and then a linear 3V3 LDO to power the ESP32....
0
votes
3
answers
1k
views
Should input power be greater than output power in a buck converter?
For example,
in order to provide for 10W (5V*2A), the input must be greater than 10W?
I asked this because in datasheets, only input voltage is mentioned. There is no mention of the input current. I ...
- 121
1
vote
1
answer
1k
views
DC-DC buck regulator MP2359 sometimes damaged when input voltage is high
I use MP2359 (datasheet pdf) to convert high voltage into 3.3V. The input range of voltage is from 4.5V to 24V.
At low input voltages, things seem to be OK. However when I input a voltage of 21V (...
- 475
0
votes
2
answers
658
views
TI TPS57160-Q1 step-down converter outputs sawtooth-like voltage at high input voltages
Disclaimer: I have posted this question on Texas Instruments' E2E Community before (Here), but haven't found a solution to my problem yet. In the meantime, I haven't found any way to progress on this ...
- 187
2
votes
3
answers
4k
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How to achieve the max efficiency from a Buck converter
I have a question about switching step-down regulators.
(As I stated in my previous questions, please consider the fact that that I'm not very expert, so feel free to reply/talk as if I were a student....
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