Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: thedoc on 08/10/2012 04:30:01

Title: How can I step up DC voltage?
Post by: thedoc on 08/10/2012 04:30:01

RENJITH KM asked the Naked Scientists:
   
How can I step up DC voltage?

What do you think?

Title: Re: How can I step up DC voltage?
Post by: RD on 08/10/2012 12:35:28

method depends on your application ... https://en.wikipedia.org/wiki/DC-DC_conversion

http://www.thenakedscientists.com/forum/index.php?topic=44718.msg391897#msg391897

[ but whatever method you use you can't generate more power (https://en.wikipedia.org/wiki/First_law_of_thermodynamics) from your source ]

Title: Re: How can I step up DC voltage?
Post by: syhprum on 09/10/2012 13:56:03

I feel the same disappointments now that the fount of all knowledge "Wiki" is available as I once did when chips to do everything started to become available fifty years ago.
At one time one could display ones skill developing a circuit to say do an analogue to digital conversion but now all you must do is select a suitable "chip" from the catalogue that will do a better and cheaper job.
I was preparing to air my knowledge on DC to DC converters but I read the excellent Wiki article, learnt much and withdrew my fingers from the keyboard. 

Title: Re: How can I step up DC voltage?
Post by: syhprum on 09/10/2012 14:15:14

Strictly speaking you can get more power than your source will normally supply, you can get kilowatts from a flashlight battery for a few micro seconds what you can't do is get more energy.

Title: Re: How can I step up DC voltage?
Post by: evan_au on 10/10/2012 11:01:59

It's true that there is a lot of information on Wikipedia, and more thought has gone into it's presentation than a short answer on a blog - but it helps to have a rough idea of the answer, so you can search for relevant terms.

If that fails, Google is actually quite good at answering questions written in plain English...