All Questions
7
questions
1
vote
1
answer
125
views
Burning sound from the PSU
I am trying to make a bench power supply from an old 350W PC PSU
that provides 4 lines
3.3V 8A
5V 9A
12V 11A
-12V 1.5A
Here is the connections diagram:
I used this step down module to be able the ...
0
votes
1
answer
1k
views
24V to 5V step down voltage regulator with LM2678 [closed]
Reference: https://www.ti.com/lit/ds/symlink/lm2678.pdf
I have constructed the circuit above attempting to step down the DC voltage from 24V to 5V. But I keep getting 8.3V as the output voltage. It is ...
- 11
-1
votes
2
answers
273
views
Buck / step down voltage in limited space
I am designing a small PCB. The supply voltage is 12V, but I also need 5V with supply of maximum 250mA.
The most obvious solution is to use voltage regulator - there are plenty of them and some like ...
- 555
2
votes
2
answers
593
views
Limiting input voltage for buck converter
I want to power some micro controllers and a couple of leds on my electric bike, counting up towards 5 Amps.
Power supply is a 36V battery, with a range of about 42V to 33V. This voltage is to be ...
- 43
0
votes
1
answer
107
views
Correct power supply for my project
I am making an autonomous bot where i need to power a few sensors (IR, PIR, sonic,etc) and an arduino. In total the sensors draw about 300 mA current(max).
My power supply is a LIPO of 12 V (11.1 V),...
- 151
5
votes
2
answers
7k
views
Input voltage for feedback pin on LM2596 Voltage regulator
I am using LM2596 for a dc supply where I could alter the output voltage. Datasheet here.
I have setup according to page 9 "Adjustable Output Voltage Versions". Everything worked fine. The output ...
- 255
1
vote
1
answer
634
views
Ideal ripple current on a DC to DC step down switching regulator
I was studing a linear's datasheet, a step down DC to DC switching regulator.
More specific: the LTC3615.
I am a little bit confused with ripple curent which involved to inductor value calculation. ...
- 2,053