All Questions
12
questions
0
votes
0
answers
57
views
High ripple in the output
We have chosen the MCP16311 buck converter for 4 V @ 1 A output.
design specifications as below.
Input voltage range: 5 to 20 V (source - USB type C mobile, charging adapter)
Output Voltage : 4 V
...
user220456
2
votes
1
answer
271
views
Buck converter current
I have this synchronous buck converter.
Input voltage - 8.7V
Output voltage - 5V
Switching frequency - 350kHz to 450kHz
Output load current is 2A
Schematic:
I have an input capacitor of 68uF and an ...
user220456
0
votes
1
answer
422
views
When and how does a buck converter behave in a boost converter mode?
My question is with reference to this answer for this previous question.
The answer states that a buck converter will behave in a boost mode for some cycles during light load or no load condition.
Can ...
user220456
0
votes
0
answers
183
views
Glitches in inductor current waveform
I am using this DC-DC buck converter.
Schematics :
Buck converter specifications :
Input voltage - 18V to 32V
Switching frequency - 300kHz
Output voltage 9V
Load current - 0mA to 200mA maximum.
...
user220456
0
votes
3
answers
873
views
Role of the output capacitor in buck converter in terms of frequency
I am using this DC-DC buck converter - buck converter.
Schematics :
Buck Converter Specifications :
Input Voltage - 18V to 32V
Switching Frequency - 300kHz
Output Voltage 9V
Load Current - 0mA to ...
user220456
1
vote
2
answers
1k
views
DC-DC buck converter low input voltage behavior
I am using this DC-DC buck converter.
Schematics :
Buck Converter Specifications :
Input Voltage - 18V to 32V
Switching Frequency - 300kHz
Output Voltage 9V
Load Current - 0mA to 200mA Maximum.
I ...
user220456
0
votes
1
answer
91
views
Control Circuitry in the Buck Converter Design
In this question, the last line of the accepted answer states that - That's why the text suggests using 1/5 or 1/10 of the switching frequency as an upper limit in terms of how fast you should design ...
user220456
0
votes
0
answers
218
views
TPS54260 DC-DC Buck Regulator BOOT and PH pin voltage drop
I am using TPS54260 Buck converter which steps down 16V to 5V output.
Load current is 600mA max.
To the inrush current through the output inductor, I did some rework. But after some rework, my 5V ...
user220456
3
votes
2
answers
467
views
LM22678 Unstable output
I am building a voltage regulator with the LM22678-5.
I used TI WE-Bench designer to get the component values needed for the regulator:
The regulator outputs 5V when there is no load however it ...
- 63
-1
votes
2
answers
7k
views
UC3843 buck converter
I want to build an adjustable buck converter with uc3843 ic.
I built up a circuit in LTSpice for simulating.
The problem is that, i want to adjust the output from 3v to near input voltage.
With the ...
- 1
1
vote
3
answers
1k
views
Going from 72V to 5V with multiple switching regulators
I have a 72V battery which I want to step down to a 5V controller with limited power loss. The problem is that looking on the TI website the biggest range I could find for power regulators is the ...
- 629
1
vote
2
answers
678
views
How to control output voltage on a Buck Converter
I'm fairly new to electronics and I have copied the Buck Converter (LM2678) in the picture attached to convert 24V to 5V. After trying it I have actually converted 24V to 9V and my question is if I ...
- 117