All Questions
Tagged with dc-dc-converter dc
94
questions
0
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0
answers
21
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How should I come up with a power supply for 5 motors, one micro-controller (ESP32) and one microprocessor (Jetson Nano) for an object sorting arm
I am trying to design a power supply for a robotic arm with 5 servo motors(2 are MG90S and 3 1501MG motors). I'm planning to use an ESP32 microcontroller and Jetson Nano.
I have the option of using ...
1
vote
1
answer
63
views
Analysing 42v to 3.3v DC converter circuit & component identification
I'm analysing a circuit responsible for generating 3.3v for a stm32f103c8t6 on a battery management system(10s). Its a completely proprietary battery management system with nothing online about it so ...
- 25
4
votes
1
answer
176
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Push-Pull DC converter - resonance in the waveform
I'm building 48v to 200v Push-Pull DC converter.
And now I'm close to finishing the project, but when I checked the waveform on the transformer I discovered that it looks like this:
(on this picture ...
0
votes
2
answers
120
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How can I amplify an analog DC voltage signal? [duplicate]
I have a 24 VDC liquid sensor that outputs 0.6 - 1.6 VDC depending on the quantity of liquid on a substrate.
How can this be amplified to ~1.0 - 10 VDC?
- 3
0
votes
1
answer
129
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Making DC-DC boost converter 3.7 to 8 V using MC34063
I am trying to make dc dc boost converter 3.9 to 8 V using:
mc34063
https://pdf1.alldatasheet.com/datasheet-pdf/view/12072/ONSEMI/MC34063.html
100 uF 16 V capacitor
220 uF 25 V capacitor
680 pF ...
- 465
0
votes
1
answer
110
views
What is the range of the most powerful step down DC/DC converters nowadays?
The team in my lab's company, we want to start using high voltage DC to perform some tests. The electric company can supply us a line of 25kV DC but in reality we would need to chop it to get voltages ...
- 324
0
votes
3
answers
213
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DC-DC booster to charge an EV battery from a solar cell?
Can a DC booster provide good current to charge a 58V ebike battery from an 18V solar solar cell?
The 20A DC booster has LVC (low voltage cutout) for the input from the panel, i.e. when it goes under ...
- 949
4
votes
3
answers
896
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HV boost converter draws too much current
I'm trying to make a 400V boost converter for a Geiger counter, but the circuit is drawing far too much current than what I would expect.
I'm using the following circuit:
My Analog Digital Discovery (...
0
votes
2
answers
273
views
Does the temperature affect the working of a PCB circuit? [closed]
I use an MP2305DS to convert 12V 5A to 3.3V 2A.
The PCB is in a standard IP68 box.
Does the temperature affect the operation of the PCB circuit?
7
votes
6
answers
3k
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How can I drop the voltage of a 5V DC power supply from 5.5V to 5.1V?
I have some LED matrix panels (64x64) that appear to be super sensitive to voltage. Higher voltages introduce noise. I have a handful of 5 V, 10 A "brick" power supplies like this one.
The ...
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-1
votes
1
answer
145
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Highest Efficiency/Lowest resulting heat from a DC/DC conversion
I have a 336VDC power source - it's a pretty unique piece of kit and won't be changing it. I'm looking to power around 500W of equipment from it at 48VDC.
However, I'm looking to do this using a DC/DC ...
- 315
-4
votes
3
answers
415
views
Cannot amplify DC voltage using op-amps
I am trying to amplify a DC voltage scaled from 5-10V to another DC voltage with maximum 12V. Why I am not using just a DC voltage with that value? Because the input DC is variable according to some ...
- 53
1
vote
0
answers
230
views
Problem connecting two DC-DC converters in one circuit
I'm building an audio mixer for microphones, and have a problem with the power supply part.
I'm designing this board to work with several voltages which are +/-15V, 5V, and 48V (for phantom power).
I ...
- 11
1
vote
1
answer
195
views
What is the simplest way to get a negative DC power?
I have several voltages available and I need a -12v dc power for a DDS function generator.
The available powers I have are:
220v AC
15v DC
12vx2 DC
5v DC
Edit:
I tried the method where I connect the ...
- 354
0
votes
2
answers
174
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I would like to drop a variable DC voltage from input 30Vdc to 200Vdc to output 5Vdc with a max 200mA
I am new to electronics and would like some help if possible.
The incoming voltage will be variable from 30Vdc to 200Vdc coming from a bank of solar panels. The output is 5vdc at a max of 200mA. I ...
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