All Questions
Tagged with dc-dc-converter capacitor
75
questions
2
votes
4
answers
397
views
How to charge a 2200 µF capacitor to 59 V in around 100 ms from a 12 V battery?
I need to charge a 2200 µF capacitor to 59 V in around 100 ms from a 12 V battery. This converter needs to be at most 35 mm wide.
This requires the use of either a boost converter or a DC-DC flyback ...
- 23
2
votes
2
answers
128
views
How to extend up-time after power supply is gone
I just started to work on a small home project. I have an indoor bike that I use quite a lot. The resistance of the bike can be adjusted manually in a purely mechanical way (by tightening a screw). ...
- 287
0
votes
2
answers
249
views
Smoothing Capacitor value?
I am trying to incorporate a smoothing capacitor into a power supply for a model train set. The power supply puts out 18V pulsating DC with a max of 10 amps. The train set draws an average of 5amps ...
- 21
1
vote
1
answer
77
views
Capacitor at output of component followed by capacitor at input of another component
I am new to electronics; I want to have an isolated power supply. To do so I use a DC/DC converter followed by a low dropout voltage regulator.
Both components recommend a certain layout, the DC/DC ...
- 365
1
vote
1
answer
42
views
Will this circuit work for wiring a 3.8v screen into my car's power? [closed]
I'm trying to wire a 3.8V screen, 3.8V battery, and my car's 5V power source together and ensure that the device will be powered by the 5V power source when it's available and that the battery is ...
- 11
1
vote
1
answer
38
views
How to choose the right type and values of capacitors for LM5143A-Q1 output?
While learning and trying to make my first buck converter using the LM5143A-Q1 (datasheet link) from TI, I calculated the required capacitance at the output for the IC to be able to output 31A, which ...
- 411
2
votes
1
answer
132
views
Output Capacitor Design for a Multiphase Buck Converter
According to this application note from Texas Instruments, in the design of the output filter for a multiphase buck converter there are basically two ways of choosing the output capacitor. The first ...
7
votes
2
answers
1k
views
Wouldn't placing capacitors between the input and output of an isolated DC-DC converter defeat the purpose?
It is common to recommend the placement of capacitors between the input and output sides of an isolated DC-DC converter, such as in this example layout:
I understand that the purpose of this is to ...
0
votes
1
answer
153
views
Non-isolated DC/DC converter
I am integrating a non-isolated DC/DC converter from Mornsun in one of our designs.
We are trying to stick to the typical application schematic:
However, two questions dictated by the limited space ...
- 445
0
votes
0
answers
78
views
Steady-state analysis of a multiple-input DC-DC converter
I am trying to perform a steady-state analysis of the dual input configuration of the multi-input converter, taken from this paper and shown below:
The authors state: "The proposed multi-input ...
- 1
3
votes
3
answers
371
views
Can I use a tantalum capacitor instead of an aluminium capacitor with an AP1509-50SG? [closed]
I am planning to use an AP1509-50SG converter in one of my projects. There is only a very small area to place components. Aluminum capacitors rated 300uF/16VDC or 330uF/25VDC have a large footprint ...
- 31
2
votes
1
answer
102
views
Capacitance on the output of a voltage converter
In a project I have a TLV62065 5 to 3.3 V voltage converter. I need to take the maximum amount of current, i.e. 2 A. The maximum output capacity for the converter is 22 μF.
The suggested capacitance ...
- 51
4
votes
1
answer
192
views
Questions regarding this power module
I'm looking at this power IC module.
I assume it's a buck converter. In that case, on page 16 of the datasheet, Equation 4.1, there's this formula: Rvout = 8.2 kΩ * TRIM. If TRIM is 5, then what would ...
user220456
1
vote
2
answers
190
views
Selecting capacitor and inductor for adjustable buck converter
I'm trying to understand how to choose the right inductor for a buck converter that can produce different output voltages.
When using an LM2596 I can add a potentiometer into feedback loop to produce ...
1
vote
2
answers
425
views
Decoupling Capacitor DC/DC
What's the physical base of 1nF capacitors (CY) between isolated grounds of DC/DC converters?
- 15