All Questions
Tagged with load dc-dc-converter
14
questions
3
votes
1
answer
79
views
Voltage drop issues in LTspice simulation for buck converter using SW model
I have a LTspice design issue where I encounter the same problem, even when I use other available simulations.
Whenever I increase the load, there is a significant drop in voltage, despite having ...
- 524
0
votes
2
answers
100
views
Step-up converter from 3.7 V to 12 V unable to supply the load
I'm working on a project where I want to supply a magnetic valve powered by two parallel connected Li-ion batteries. Each battery has a voltage of 3.7 V (max. 4.2 V) with a capacity of 3.5 A (in total ...
1
vote
2
answers
282
views
MIC2251 5V Booster - voltage drops when load is connected
I have a step-up circuit that boosts 2.8-4.2V on the input to 5V.
The problem is when I connect any load to it at the output, it loses around 1V and I have no idea why.
The Step-up IC is MIC2251:
...
- 75
0
votes
2
answers
184
views
How to control the transient output current of a synchronous buck converter?
I am dealing with the following problem,
I want to control the output current and voltage of a synchronous buck converter during the output load (resistor) step change. Suppose we set the output ...
- 11
0
votes
1
answer
61
views
Different chemistry of batteries in operation
I had an idea of using different chemistry of batteries as shown in the schematic figure
Is that possible to design a system in that way. According to the design, I am using all the evaluation boards....
0
votes
1
answer
528
views
Reason to connect a bidirectional tvs diode in paralell with a unidirectional one
I am designing my own high-side smart load switch for my power supply using TPS27SA08 ic.
I decide to investigate how it works this evaluation board https://www.ti.com/lit/ug/slvubd4b/slvubd4b.pdf?ts=...
- 450
0
votes
0
answers
141
views
Load/Shunt resistor value calculation for DC-DC Converters
I have DC-DC converter with rating -4KV and 1W. The unit supports current monitoring of output voltage. I would like to test the current monitoring using shunt resistor.
What should be the rating of ...
- 13
0
votes
0
answers
53
views
How does a boost converter power the oscillating circuit and load at the same time?
so I've put together a boost converter circuit of my own and I have a problem, I want my boost converter to output reasonably high current but whenever I connect a high current load - the astable ...
0
votes
1
answer
563
views
DCDC converter load step and phase margin
When applying load step to a DCDC converter we can approximate the phase margin from the presence/absence of oscillation and the crossover frequency as well from the response time.
The question is: ...
- 255
1
vote
1
answer
285
views
Open Loop Buck Converter - Regulating output voltage during rapid load change
I am designing an open loop buck converter. I want to limit the change in output voltage during rapid load change to a certain value. How should I modify my circuit design to achieve this goal?
- 449
0
votes
1
answer
339
views
Can I use a car battery to power my robot?
I'm building a machine which can fly a kite. It uses a camera to follow the kite in the air, and based on that it pulls the wires using an electro motor which hangs in the air under the kite.
So far ...
- 485
1
vote
2
answers
2k
views
DC/DC convertor max capacitive load
In my aplication I need to use a galvanic isolator DC/DC convertor. One parameter in the datasheet (of DC/DC convertor) specifies that maximum capacitve load is 220uF and maximum mA output is 200
...
- 359
2
votes
1
answer
2k
views
Boost Converter no load problem
This my 12V boost converter shematic and Vin voltage 6.6V to 8.4V. I use Texas Instruments LM3478 boost converter.
I calculated my capacitor value, resistor value, inductor value, switching frequency ...
- 115
1
vote
2
answers
978
views
Buck converter load testing
What is the best way to test the load response of a DC DC buck converter? I thought that a power resistor to fully load the circuit would be the best thing to do. Any thoughts on that?
Specs:
...
- 417