All Questions
23
questions
0
votes
5
answers
397
views
Shielding Buck Converter
I have a simple question, and I want to ensure that nothing unexpected happens. I'm currently working on a Raspberry Pi-based robot project with a Pi camera, and I plan to power it with a battery, ...
- 53
1
vote
1
answer
38
views
How to choose the right type and values of capacitors for LM5143A-Q1 output?
While learning and trying to make my first buck converter using the LM5143A-Q1 (datasheet link) from TI, I calculated the required capacitance at the output for the IC to be able to output 31A, which ...
- 411
0
votes
1
answer
39
views
Switching regulator Design
I am designing a switching buck converter from 7.5V to 5V using the AP62200TWU-7 converter.
This converter operates at fSW=750kHz Switching Frequency.
The required output current is around 0.5A.
using ...
- 41
0
votes
0
answers
78
views
Can the MP9488 circuit be operated at 333mA output current?
I am looking to use the MP9488 as a buck Switching Regulator with a voltage output of 12V and output current of 333mA. In the application note it has an output current of 300mA.
As far as I understand ...
0
votes
3
answers
64
views
Current and voltage value before inductor pin in buck converter
In buck converter we know that pure DC current will be after inductor pin. But what will be the current/voltage value before it.
Let’s take an example, the buck converter circuit with 12 V input to 3....
- 543
0
votes
3
answers
1k
views
Buck converter unstable output voltage
I am trying to use an AP6507 to power a Raspberry Pi from a 12V battery. In the datasheet is written that it should provide a continuous current of 3A, but when I try to power the Raspberry Pi, the ...
- 1
2
votes
1
answer
704
views
Switching regulator vs converter
Is there any difference between switching regulators and converters? I have read about step-down voltage regulator and buck converters and they seem to be the same. So, can I use the term converter ...
- 37
1
vote
2
answers
1k
views
DC-DC buck converter low input voltage behavior
I am using this DC-DC buck converter.
Schematics :
Buck Converter Specifications :
Input Voltage - 18V to 32V
Switching Frequency - 300kHz
Output Voltage 9V
Load Current - 0mA to 200mA Maximum.
I ...
user220456
1
vote
1
answer
3k
views
Buck converter input voltage lower than the designed output voltage
I have this buck converter which is designed to produce an output voltage of 9V for an input range of 18V-36V.
The datasheet of the buck converter mentions that the minimum required input voltage is 4....
user220456
0
votes
0
answers
359
views
Buck Converter Switching Pin and Voltage Output
By using rohm's BD9G341AEFJ-LB buck switching regulator, we want to take 5V. In datasheet BD9G341AEFJ-LB's datasheet
the example circuit given like
But we had to try circuit that is in Image-2, ...
- 55
0
votes
1
answer
85
views
DC current at input and ouput capacitance of buck
I'm working on this website
http://www.onmyphd.com/?p=voltage.regulators.buck.step.down.converter
Could someone help me to understand those two statements:
1) "since the DC current of the inductor ...
- 11
1
vote
4
answers
496
views
What did I do wrong with this switching voltage regulator circuit (LM2574)?
I'm new to the electronics world. I've been trying to build a switching voltage regulator circuit using the LM2574N-5G (datasheet) IC. I'm trying to switch 9V (from a 9V battery) to around 5V. I've ...
- 211
6
votes
3
answers
2k
views
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....
2
votes
4
answers
529
views
300VDC to 24VDC voltage converter - Cheapest implementation
In an application, 100+, 100W 24V halogen lamps need to be individually controlled and run simultaneously. They stay on for a few seconds at a time and need to have very constant irradiation.
...
- 8,096
16
votes
4
answers
19k
views
Low side N-Mosfet buck converter
I often see schematics of basic buck converters. The majority of these schematics use a P-MOSFET as high side switch.
Why is this design preferred over a low side, N-MOSFET buck converter?
simulate ...
- 1,025