The dc-dc-converter tag has no wiki summary.
4
votes
3answers
140 views
DC-DC converter, 12V to 400V? Is this possible?
To be able to charge a high voltage battery (~400V) from solar panels I need a dc-dc converter that can boost up the voltage from the low voltage system (~12V) to the higher voltage.
The power needed ...
-2
votes
1answer
54 views
How much current draw will a dc-dc converter have in this situation?
I am trying to make a mobile computer for my Raspberry Pi. The problem here, is powering the Pi, screen AND the USB hub from the same power source. I have bought this: ...
0
votes
1answer
54 views
DC-DC converter maximum current rating
I am using an XP Power XP-IL1224S 12V to 24V DC-DC converter, does anyone have experience with the current rating of these kinds of parts?
The maximum current is rated as 84mA @ 24V, which works out ...
7
votes
5answers
231 views
Multiple buck converters on the same PCB, should switching frequency be the same?
I have a question regarding dc-dc buck converters. I need to supply multiple different voltages on my board and I am very limitted with power this is why I need to use high efficiency converters. If ...
-6
votes
1answer
80 views
What is the average voltage across the load and the average current through the diode?
In the circuit shown in the figure, the switch is operated at a duty cycle of 0.5. A large capacitor is connected across the load. The inductor current is assumed to be continuous.
What is the average ...
0
votes
3answers
119 views
(When) does an SMPS use a push-pull converter to translate the voltage?
I'm reading up on SMPSs and related technology and have come across contradictory information, or so it seems to me.
Various sources on push-pull converters (for example, the English and German ...
2
votes
1answer
64 views
What is the PEAK-TO-PEAK source current ripple in amperes for the chopper?
In the figure shown below, the chopper feeds a resistive load from a battery source. MOSFET Q is switched at 250 kHz, with a duty ratio of 0.4. All elements of the circuit are assumed to be ideal. ...
-3
votes
1answer
39 views
Is the converter operating under continuous mode of conduction? [duplicate]
The switch, S of the DC to DC Buck converter shown in the figure is operated with a duty cycle of 0.5 at a switching frequency of 5 kHz while it is feeding a certain load.
While the input voltage of ...
-6
votes
2answers
120 views
Is the converter operating under discontinuous mode of conduction?
The switch, S of the DC to DC Buck converter shown in the figure is operated with a duty cycle of 0.5 at a switching frequency of 5 kHz while it is feeding a certain load.
While the input voltage of ...
5
votes
2answers
145 views
DC DC Converters in Parallel for double current
I am using a 15V 7A DC DC converter for powering a robot. I am looking for a 15V 20A supply. For this can I put three of those regulators in parallel and expect them to provide about 20A of current? ...
3
votes
1answer
141 views
Synchronous DC-DC converter and fast diodes
I'm a bit at a loss when trying to optimize a DC-DC converter (Half Bridge) and selecting my MOSFETs.
Up to 200V I get good results (MOSFET switching times are fast ~ 20ns and the anti-parallel diode ...
-6
votes
2answers
69 views
Any body could tell me which MOSFET is perfect for Input Dc 200-2800 and Output 15V @ Output Current 3A [closed]
Please Help me to find MOSFET or IGBT for High Voltage Dc Input from dc input 200-2800V and output 15V @ output Current 3A
This is for dc-dc converter which we will use MOSFET.
1
vote
1answer
129 views
Cheap and simple step-up converter
I would like to build simple and small power supply for my projects with microcontrollers. This supply should be powered by two Ni-MH batteries and output should be 5V (maximum current 500mA).
I know ...
4
votes
1answer
272 views
Converting and Stabilizing output voltage of a dynamo hub
Preface - I don't know much about electronics :P
I have ordered a Shimano dynamo hub for my bicycle. I have done a little homework and here are my findings about it:
The output of the above ...
7
votes
2answers
224 views
Correctly debugging switching (DC-DC) boost converter with Oscilloscope
I have an LED driver (LM3410) that adjusts it's voltage based upon how many LEDs you place in series to it and I'm curious to see what voltage it is actually outputting. To test it I connected my ...
6
votes
3answers
252 views
Can a charge-pump be 100% efficient, given ideal components?
A recent question about cyclically charging a capacitor reminded me of something I read once. As I remember, it demonstrated that it's impossible to construct a charge pump that is 100% efficient with ...
2
votes
2answers
111 views
Triangular waveform shown by DSO for DC output. Is this usual?
Found this, confusing picture on a popular ecommerce site, shows an extremely economical DC-DC (step-down) adjustable voltage converter (based on LM2596S), which apparently works for upto 2Amps of ...
1
vote
2answers
1k views
What type of DC-DC converter should I use for solar MPPT?
I am currently doing a project that involves Maximum Power Point Tracking (MPPT) for Solar Panels. I plan to do this by using the Arduino as a controller to a DC-DC converter. I am going to use the ...
1
vote
1answer
300 views
how can I made a 12vdc to 19vdc booster/regulator?
This is a fairly specific question, but I think the answer could probably be applied to various voltages.
I would like to make a circuit that will take in a 12-14volt source (from a lead acid) that ...
6
votes
3answers
3k views
Regulated 3.3V from a Lithium-ion (or LiPo) battery
Background
I wish to power my circuit with a Lithium-ion or LiPo battery (likely a battery with around 1000 mAh capacity). These batteries have a voltage that goes from 4.2V to 2.7V typically during ...
4
votes
1answer
111 views
how to test isolation of DCDC convertor?
I have an isolated DC-DC convertor which boasts a 1.5kV isolation. I have a PCB made along with the additional components it requires. How can I test it?
1
vote
1answer
248 views
Buck Regulator Output is too Small
I'm making a buck regulator using L4970A using circuit from this application note figure 60 , except for the inductor. I change i to 180 uH
I wanna make it to be a power adaptor for laptop with solar ...
4
votes
5answers
4k views
3V to 500V DC converter
I am making 3V to 500V DC converter for a GM (Geiger-Müller) tube kind of application. Basically the tube needs to see 500V across it.
I read this relevant thread here :
5V to 160V DC converter
and I ...
1
vote
2answers
375 views
DC supply for control circuit of a DC-DC converter?
I have a switch mode DC-DC converter assignment which is supposed to convert 36-72V input DC voltage to 9V DC voltage. The circuit I'm working on contains a control circuit (implemented with a custom ...
