Skip to main content

Questions tagged [step-up]

The tag has no usage guidance.

3 votes
1 answer
5k views

How does such an USB step-up 5V-12V work? [closed]

I just bought a cheap USB 5V to 12V step up converter: Surprisingly, it works very well. There is few place for electronic components (maybe in the USB connector?), how can we do a 5V to 12V ...
Basj's user avatar
  • 1,946
2 votes
2 answers
487 views

Step Up Circuit does not work

I am using an IC as a step-Up converter in my PCB. It is supposedly to increase voltage from 12V to 30V. This is the chip that i used. https://datasheet.lcsc.com/lcsc/1809251831_Diodes-Incorporated-...
user1584421's user avatar
  • 1,369
2 votes
1 answer
3k views

Creating a Li-on backup for a 12v router

I am building a small battery backup for my router with the 12V 0.5A DC input. Main use is to keep the router powered up during load shedding (aka. power cuts / blackouts ) while my backup generator ...
animus's user avatar
  • 23
2 votes
2 answers
317 views

Step up circuit burns protection diode

I have implemented a step up circuit using an IC. I implemented the component selection from the datasheet. This is its datasheet. Image source: LCSC - AZ34063U datasheet The step up feeds an H-...
user1584421's user avatar
  • 1,369
2 votes
4 answers
1k views

Stepping up three 3.3 V outputs to 5 V

I want to use the third solution from this answer to step up three of my GPIO pins from my Raspberry Pi. Would I need to make one of these circuits for each of the pins or could I, for example, ...
Jacob's user avatar
  • 25
1 vote
1 answer
6k views

MT3608 Improper Output Voltage

SITUATION Hello All, I have designed a PCB the using a MT3608 to produce 5V from an 18650 Li-Ion battery. This is my second revision of the PCB (the first one worked fine), however this one has ...
Accentrix's user avatar
0 votes
1 answer
1k views

geiger tube dc power supply

I have one of these HV dc converters and I was wondering if I can use it to supply a small Russian SMB21 Geiger muller tube. What other parts would I need to add not to fry the GM tube? Keep in mind I ...
Valentin Virban's user avatar
0 votes
1 answer
381 views

Parallel 18650 battery pack voltage not stepping-up with Boost converter. Why?

I'm new here and I hope this is the right place to ask! I have assembled a 6P 18650 battery pack out using Samsung 25R cells, soldered altogether with Nickel strips, effectively giving me 3.7V 15Ah. ...
Omar Al's user avatar
0 votes
2 answers
415 views

Boost converter single cell AA battery not delivering enough voltage when connected to Wemos D1 mini

I must power a Wemos D1 mini at 5V (more on that below) (along with 4 LEDs and a DC motor) with a single cell AA battery. I have tried 2 boost converters (Vin 0.9V-5V) and none worked. I need 5V for 2 ...
Saren Tasciyan's user avatar