All Questions
Tagged with dc-dc-converter circuit-design
73
questions
3
votes
2
answers
294
views
Correct Implementation of Flyback Diode, TVS Diode, and Snubber Circuit for Buck Converter?
I am fairly new to circuit design. I was wondering if I have correctly implemented the TVS diode (D8), flyback diode (D6) and the snubber circuit (R20 and C41) for this buck converter. I apologize in ...
- 55
2
votes
1
answer
55
views
How can I improve the feedback portion of my boost converter circuit?
I designed this boost converter to drive vacuum florescent displays, nixie tubes, and similar devices.
It can drive a 10k Ohm load at 235V. I'm sure I can get away with larger loads as alot of the ...
- 69
2
votes
1
answer
133
views
How does \$R_{ISET}\$ work in this Boost Converter?
I'm trying to design a boost converter for a backlight which has Vf:10.6-13.6V, If:140mA
I picked AP3031, I did steps required to find component details e.g Inductor Value, Iswmax
So far I understand....
- 89
0
votes
0
answers
59
views
How to understand MAX25431 datasheet on inductor selection?
I am trying to design a project featuring MAX25431 buck-boost converter.
After examining the datasheet I started the part selection for my application, but I have troubles understanding few details:
...
- 103
0
votes
1
answer
149
views
I want to control the voltage and current of a LTC3780 module using an Arduino
Is it possible to adjust the voltage of LTC3780 through this circuit?
I don't know much about circuits, but I designed it based on what I studied.
Please understand even if I’m not good at English.
...
- 1
1
vote
2
answers
341
views
Energy harvesting using LTC3108 not working
I’m trying to boost the energy of a plant microbial fuel cell (PMFC) using the CJMCU 3108 LTC3108 energy harvester breakout board. I’ve configured it like the image below, for 3.7 V.
LTC3108 datasheet....
- 11
0
votes
1
answer
71
views
-VOUT, and COM pins for DC-DC Converter
For this DC-DC converter
it shows PINs labelled as (see image):
1.) This is from the datasheet, https://www.murata.com/-/media/webrenewal/products/power/datasheet/ust-3w.pdf one of the few that ...
- 1
2
votes
0
answers
47
views
Double frequency buck converter - minimum values of smaller and larger inductances
Consider a double frequency buck converter shown below having small and large inductors operating at higher and lower switching frequencies respectively, in order to improve both the transient ...
- 61
0
votes
0
answers
64
views
Buck Converter Output Voltage Swing problem
I am designing a voltage mode control buck converter and I have an issue with my output voltage swing. I made calculations for type 2 compansator. I can't figure the cause of problem is stability of ...
- 27
2
votes
3
answers
568
views
12V to 24V booster circuit design
I am trying to copy this design for my circuit.
I have attached everything according to spec in real life on my circuit but what ever I try it won't output over 2.24 V. I have done a simulation in ...
- 21
1
vote
1
answer
178
views
How do I use the TPS5403 DC-DC buck to get 3.3V output from a 5-15V input?
I am trying to use the TPS5403 (datasheet) buck converter to power an ESP32 at 3.3V from an input of 5-15V, however, I can't find enough resources online to be sure in my design.
Below, I have ...
- 11
0
votes
1
answer
51
views
How can I generate an intentional DC spike voltage?
I have a 24 VDC circuit which uses a photocell to detect the level of fluid in a tank. When the level drops, this operates a 24 VDC, 1 A fluid solenoid which refills the tank. It works fine with ...
- 3
2
votes
1
answer
1k
views
Determining the switching frequency of a buck-boost converter
I wanted to try to design a buck-boost converter (instead of buying it) to drive an electromagnet. I have a 12 V source and I want to have an output of 24 V and at least 200 mA. As input I'm using a ...
- 311
0
votes
0
answers
193
views
Is it good idea to cascade SEPIC converters to extend the input voltage range of the XL6009?
I'm currently working on designing a current controlled SEPIC converter with a wider range of input voltage for a medium sized power application which can be powered by a lithium battery.
The existing ...
- 45
0
votes
3
answers
105
views
Isolated power supply for a digital isolator
I am using a small microcontroller board to communicate with other devices through a MAX3225 and several analog components.
To isolate the communication interface, I would like to use the ADuM1402.
...
- 3