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Wide voltage input
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Jr.Maxwell:
Hello members ;D
While designing an Interface for a product I've noticed that the product has a wide range voltage input, it made me think about the applications for wide range voltage input.
What are applications for having a wide range input? I can imagine that this is helpful when using batteries as power supplies, as the voltage keeps on changing. Are there any OTHER aplications you can think of that are usefull with a wide voltage input?
Thank you for your time :)
SiliconWizard:
Maybe you should define what you mean by "input" here.
The example you're giving is with power sources. Whereas that sometimes requires a "wide" range, batteries are usually not a particularly significant example, as typical batteries' voltage doesn't vary THAT much (for instance, for a typical LiPo cell, that would be ~3.0V to 4.2V - even for multi-cell batteries, that will usually be just a few Volts - I don't call that "wide", but hey. :) )
Typical WIDE voltage inputs: multimeters, scope channels, acquisition systems in general.
Multimeters can usually deal with voltages as low as a few µV (or less for the high-end ones) up to 1000V or above! That's what I call wide!
ArthurDent:
Quite often there are pieces of TELCO equipment that may be required to run from either 24 or 48 volt battery supplies and having one power supply that will operate over the entire range without changing voltage selection switches is a big plus.
Most plug-in wallwarts are designed to operate from either 120VAC or 240VAC to allow the unit to be used worldwide with one supply, making it cheaper to produce and more foolproof.
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