How Can I Increase the Amperage Output of an AC to DC Converter?

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Discussion Overview

The discussion revolves around methods to increase the amperage output of an AC to DC converter, specifically one with a 120V AC input that outputs 13V DC at 3.42 A. Participants explore the limitations of such converters and potential alternatives.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions if it is possible to boost the output amperage of the converter.
  • Another participant notes that the current output is typically limited by the ratings of key components, and exceeding these ratings could lead to failure and safety hazards.
  • A different viewpoint suggests that increasing power output would require a larger transformer and rectifying diodes, indicating that simply modifying the existing unit may not be feasible.
  • One participant calculates the power output as 44.46 watts and mentions that while it might be possible to draw more current by lowering the voltage, this could lead to overheating issues.
  • Another participant provides a link to a resource for high current 12V DC supplies, suggesting that size and component ratings are significant factors in achieving higher power outputs.

Areas of Agreement / Disagreement

Participants generally agree that the current output is limited by the physical components of the converter and that modifying it may not be practical. However, there is no consensus on whether any modifications could yield a safe increase in output.

Contextual Notes

Limitations include the dependence on the specific design and ratings of the AC to DC converter in question, as well as the potential safety risks associated with modifications.

bskramer
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hey guy I was wondering if there was any way to increase the amperage output of an ac to dc converter, it is a 120v ac input that outputs 13v dc at 3.42 A. is there any way to boost this output?

P.S. Ya'll are the best, This is by far one of my favorite places to be on the web. kudos on a job well done.
 
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bskramer said:
hey guy I was wondering if there was any way to increase the amperage output of an ac to dc converter, it is a 120v ac input that outputs 13v dc at 3.42 A. is there any way to boost this output?

P.S. Ya'll are the best, This is by far one of my favorite places to be on the web. kudos on a job well done.

The current available from a power supply of this kind will normally be limited by the ratings of certain key components. Exceeding these ratings is likely to result in failure, which can cause overheating, fire and electric shock hazards.

Modifying mains powered equipment is not a job for novices. It would probably be uneconomic to make the modifications needed, so even someone who knows what to do in principle would most likely buy a manufactured product. If you need a more powerful supply, you would be far better advised to buy one.
 
bskramer said:
hey guy I was wondering if there was any way to increase the amperage output of an ac to dc converter, it is a 120v ac input that outputs 13v dc at 3.42 A. is there any way to boost this output?

P.S. Ya'll are the best, This is by far one of my favorite places to be on the web. kudos on a job well done.

Generally that current output (and therefore power output) is limited by the physical size of the transformer in the linear power supply. The only way to get more power out is to buy a bigger transformer. The bigger transformer model will also come with bigger rectifying diodes.

If it's a switching power supply, it takes a bigger transformer and bigger switching semiconductors.

So the short answer is no.


EDIT -- Beaten out by Adjuster!
 
Nope... You get 13 * 3.42 = 44.46 watts from your wall-wart and that's it. You can probably get a bit more current if you can deal with the voltage being pulled lower than 13, but the poor thing will probably overheat eventually.
 
I don't know if size is a factor, but this site,

http://www.trcelectronics.com/12-volt-power-supplies-mid-chassis-1.shtml

was helpful when we needed a 12VDC supply with high current for a project. Since you want high power, it's hard to get too small in size, because, like everyone else said, the components are big at higher ratings.

Hope this helps.
 

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