Questions tagged [dc-dc-converter]
DC-DC conversion. Implies conversion of a DC voltage level up or down. DC-DC converter can be isolated or non-isolated. Electronically it can be done by many kinds of circuits, depending upon the application (charge pumps, voltage multipliers, linear voltage regulators, boost/buck switched converters, etc)
2,685
questions
2
votes
1
answer
823
views
Current booster DC-DC 300mA - 900mA
I have a source of power which can provide up to 300 mA at 1.5 V DC, however I would like to power a circuit which uses 900 mA at .5 V DC. What would be the easiest way to do this? If it was AC I ...
- 267
9
votes
4
answers
1k
views
Designing 12V -> 0.1V 100-500A DCDC
I need to build 0.1V@100-500A power supply - and I wonder what's the best way to approach this task? I guess here are not much specific IC's suitable for such DCDC... Should be current-stabilized, 10% ...
- 3,219
2
votes
2
answers
180
views
Multiple power supplies of different current ratings for efficiency
I've got a 30V 2A isolated DC/DC supply. I need to be capable of outputting 1A for short periods of time (3 sec, exception condition only), so with temperature derating that's what I picked.
However, ...
- 3,511
9
votes
2
answers
26k
views
Calculating Power Loss in Switching Power Regulator?
I am new to the construction of DC/DC power supplies (still a university student) and have built basic supplies using simple linear voltage regulators. I have recently discovered the world of ...
- 417
7
votes
2
answers
3k
views
DC/DC isolated supplies in series for higher voltage?
Can I chain two isolated DC/DC supplies together for a higher output voltage? (Say, a 48V and a 12V to get 60V?) They'd be fed from the same 24V DC source.
I've asked a related question before (...
- 3,511
10
votes
3
answers
19k
views
Calculating size of cap & inductor for buck convertor
What is the idea of choosing inductor & capacitor value for buck DCDC convertors (no specific part number, in general)?
I've tried random one with low resistance, and it kinda works, but want to ...
- 3,219
6
votes
2
answers
4k
views
Arduino and 5A 12Volt driver
I want to drive a 5 metre strip of 300 5050 SMD LEDs. It comes with a 5A power supply but I don't know what the rating are for these LEDs.
The thing is I want to be able to change the voltage using ...
- 2,144
7
votes
3
answers
2k
views
is it OK to stack several DC-DC converters with their inputs connected in series to support a larger input voltage?
Imagine I have a single-IC switching DC-DC converter which supports input voltage up to 16V, for example a LM2727.
Can I stack the inputs of such converter in series, for example 64 of them, and be ...
- 2,015
2
votes
1
answer
1k
views
Transmitting audio over variable voltage DC power line?
I have multiple generators that are producing a variable DC voltage between 0 and 18volts each that are being sent to an inverter for an AC output used to power various devices.
I really need to be ...
- 23
4
votes
5
answers
10k
views
how to build a high-power (4kW) switched-mode DC-DC converter?
I would like to build a switched-mode DC-to-DC converter which should support up to 4000 W of power. It should be able to act as a CCCV power-supply, so supply a constant current Imax up to the point ...
- 2,015
2
votes
2
answers
4k
views
11-16V DC voltage stabilization for 13.8V powered ham radio
I am looking for any resources on how to construct a relatively high power (25A, 13.8V) voltage stabilizer (or voltage booster if you like) for my 13.8V powered ham radio.
The problem I try to ...
- 323
1
vote
5
answers
3k
views
Supply power to mini-ITX from car battery
Two related questions have been combined here as the answers and concepts overlap:
(Q1) We are building a robot that will be controlled by mini-ITX PC. The power source for robot will be detached ...
- 113
15
votes
4
answers
22k
views
12V DC UPS for Network Equipment
My requirement is to keep running supply of low power devices like DSL modems, etc.
Most of these devices input 12V/9V DC so i don't see the value in using ordinary UPS which converts DC to AC then ...
- 295
4
votes
1
answer
512
views
DC - High Voltage DC converter that acts like a sink
Anyone knows of any DC DC converter that can produce at least 200V and act as a sink? If it is comes in DIP package, its better.
Right now I am using EMCOs DC-DC converter. But it cannot really act ...
- 575
6
votes
9
answers
5k
views
Would this work? Using a computer SMPS as a DC-DC converter
I have this crazy idea of using a computer SMPS with active PFC boost to take high voltage DC battery banks (144V+) and drop it down to 3.3V, 5V and 12V.
Here's my thinking: the power supply ...
- 31.9k