All Questions
13
questions
0
votes
2
answers
86
views
OVP threshold for this converter
Here, this Boost converter, says that it can boost the input voltage from 2.5 V to 10 V.
My input is from a 7.4 V, 7.5 Ah battery. Output is 9 V. The maximum load current is 3 A.
Ideally, for my OVP ...
user220456
1
vote
1
answer
238
views
What happens if the Input voltage and the output voltage are same in a boost converter?
I'd just like to know what would happen if the Input voltage and the output voltage are same in a boost converter. I have a feel that it might not work.
But would like to understand the effects that ...
user220456
1
vote
0
answers
55
views
Boost converter output voltage drops
I'm using an MIC2251 (MIC2251-1YD5-TR) in a design to boost a lithium battery (3.6V-4.1V) to 5.4V for powering a small camera peripheral that requires a typical draw of 80mA. I expect that the worse ...
user220456
0
votes
0
answers
30
views
How to change from HyperLight Load mode to forced PWM mode
In the MIC33M650 step-down module, is there a possibility/workaround to deactivate the HyperLight Load mode? Or decrease the threshold of the current needed to activate forced-PWM mode?
user220456
1
vote
2
answers
68
views
Output load current less - DCDC Converter [closed]
I'm using this Boost converter. 3.6V to 12V with a load current 300mA. 10uH is the inductor used.
But I am only able to get a maximum load current of 120mA. What might be the reason?
user220456
4
votes
1
answer
216
views
Switching frequency data not available
Why do some dc-dc buck or boost converters do not have the switching frequency value in their datasheet?
For example: Link does not have switching frequency ?
Is it possible to get power dissipation ...
user220456
0
votes
1
answer
517
views
Buck converter output LC filter phase difference
I was going through a few buck converter questions in this forum to understand deeply about the circuit and I found this question. However, I am not focused too much on the ripple right now. But when ...
user220456
1
vote
2
answers
1k
views
What causes harmonics in DC-DC Switching converters like Buck and Boost Converter
Can someone tell me what and how the harmonics are caused in the DC-DC Switching converters?
I tried to read this, but I am not understanding. Can someone please explain in simple terms
user220456
0
votes
1
answer
660
views
Buck Converter Voltage waveform at the free wheeling diode cathode and anode
I am trying to understand the voltages at the free wheeling diode's cathode and anode in a buck converter.
During the ON-state (as in the above circuit diagram), I assume the voltage at the diode's ...
user220456
0
votes
1
answer
80
views
Design of DC-DC Converters
While designing buck converters (or boost converters), why do we usually fix some percentage of the Ripple current (or ripple voltage) and from this percentage, we arrive at the value of inductor and ...
user220456
1
vote
2
answers
1k
views
Is there a thumb rule for the input and output capacitor for DC-DC converters?
If we are using a buck converter of say 5V 1A output, we definitely require input and output capacitors.
Just without making any calculations, is there a thumb rule on what the values of the input and ...
user220456
0
votes
1
answer
88
views
How to set the boost output voltage in this IC?
I want to use this boost IC to drive an LED string.
I have 9 LEDs. 300mA forward current and 3V as typical Vf.
Can someone guide me on how to set the output voltage of the LED string using that IC?
user220456
0
votes
3
answers
264
views
Current consumption of devices [duplicate]
I want to use boost converter to to supply higher voltage to LED .I have confusion about which smps power supply to use on input side.
From specs. I am unable to understand why input current ...
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