All Questions
31
questions
0
votes
1
answer
204
views
Do I need a buck converter?
I am planning to build a circuit with a bluetooth audio receiver (MH-M18) and an Arduino Nano, connected to a DIN connector.
I have a wire with 12V supply readily available to connect to the circuit....
- 125
6
votes
4
answers
3k
views
How to replace a potentiometer with a digital solution in a buck feedback loop?
I have a simple pre-made buck converter that looks something like this:
The output voltage can be easily adjusted, by turning the R2 trimpot, which adjusts the voltage the feedback pin is getting.
...
- 204
0
votes
1
answer
255
views
My RT8272 buck dc converter fried in my test charging circuit for arduino
I'm building a circuit to power an arduino and later a stepper motor from a 3A 24V DC source. The DC power source is a switching power supply, much like those used in notebooks.
I'll need after ...
- 567
1
vote
2
answers
86
views
Something wrong with open USB circuit, electrostatic problem
I faced a strange problem with the following circuit.
I'm using some buck converters and an Arduino. The buck converter (Vout = 5.25v) is for a USB charger (up to 2 Amps). Well, I think the circuit ...
- 65
0
votes
1
answer
493
views
How to increase current output of capacitor bank with buck booster?
I'm pretty novice when it comes to electronics given that my background is in mechanical engineering. But I am trying to design a circuit that can take a 5V (almost 0A current) to charge a capacitor ...
- 11
0
votes
1
answer
247
views
Trying to power 100 Arduinos from single power line
I'm trying to power up to 100 Arduinos that will be spread across a 25m wall using a single power line.
The idea is each Arduino will have a few a few buttons, leds & an oled screen and will all ...
- 9
5
votes
2
answers
591
views
Running 20 WS2812 LED strips (80 pixels each) from a single Arduino and 24V Power Supply with Buck Converters
I am building a matrix with 20 WS2812 LED Strips. Each strip is 80 pixels for a total of 1600 pixels. I want to drive them all from a single Arduino Mega board. To handle the power needs, I have a 24V ...
- 51
0
votes
3
answers
1k
views
5v power supply from 18650s - high power, low profile
I am trying to use 2 18650 batteries to power 288 APA102 LEDs. The LEDs require 5V, and have a max current draw of 60mA/LED for a total of 17.28A. I will also have a microcontroller attached (...
3
votes
1
answer
4k
views
Reason fo use or not use a microcontroller to drive a buck DC/DC regulated converter
Is there some reason not to use a microcontroller ( like ie an Arduino ) to drive with PWM a Mosfet and use an analog input to provide voltage feedback and regulate the output, and maybe another ...
- 893
-1
votes
2
answers
317
views
buck converter and regulator
First:
I want to use DC DC Stop Down Buck Converter, im using this one:
- https://www.aliexpress.com/item/10pcs-24V-12V-to-5V-3-3V-3V-DC-DC-1A-Step-Down-Converter-Voltage-Regulator/32671102728.html
...
- 1
0
votes
4
answers
4k
views
Can I use a DC-DC buck converter with an arduino
I'm just starting out with electronics and arduinos, but I want to ask if i'll be safe using an LM2596S DC-DC step down buck converter as the regulator for my arduino project?
I have a few to hand ...
- 99
1
vote
0
answers
630
views
Designing Buck Converter with Adjustable Output Current and Output Voltage
I am currently attempting to design a buck converter where both the output current and output voltage can be simultaneously adjusted. I will be utilizing an Arduino for control. I figured some sort of ...
user91736
1
vote
1
answer
1k
views
PI control Implementation for Buck Converter using Arduino
I am implementing current control on my synchronous buck converter using ARDUINO UNO. I designed my control via "Symmetrical Optimum" method and calculated the values for Kp and Ki (not Kd since i am ...
- 553
1
vote
0
answers
951
views
Controlled supercapacitor charging with buck converter
I'm building a charging circuit for two supercaps (2.7V, 3000F each) in series. I've got a 12V supply and a buck converter rated to 15A, which I've set to provide 4.8V. I'm using balance resistors to ...
- 23
-1
votes
1
answer
114
views
Synchronus Buck Converter
So i am designing a Synchronus Buck converter 12V - 5V with 12 W of power at the output. This means that my output current will be on average 2.4 A.
Now for the feedback I am using an Arduino. I will ...
