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Old 6th December 2012, 04:40 AM   #11
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Quote:
Originally Posted by wilkes5 View Post
can you just double the values of everything in the schematic?
Ermm,No.
Even if you doubled the output power of that design,you're still nowhere close to 2300W.
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Old 6th December 2012, 04:45 AM   #12
wilkes5 is offline wilkes5  United States
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quadruple? lol
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Old 6th December 2012, 05:17 AM   #13
MarianB is offline MarianB  Romania
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@wilkes5 there are 2 books i recommend for you to read:
1.The Art of electronics
2.Power supply cookbook

Read them both in that order and i think after that you alone will at least smile reading your own posts so far.
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Old 6th December 2012, 07:53 AM   #14
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Wilkes,
making a 12v dc-dc converter is the best start point imaginable when entering the smps world.

Go start make the one presented in the sound west host.
When you get it to work, you can start thinking bigger.

However 2-3kW is really really hard if not even impossible to get with only one smps from a car battery.
Therefore - make several small ones. Or one control unit pumping several small transformers, lets say 10pcs 300w transformers...

The one in the sound west host gives you less than 300w of power.
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Old 6th December 2012, 08:20 AM   #15
MarianB is offline MarianB  Romania
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Quote:
Originally Posted by palstanturhin View Post
Wilkes,
making a 12v dc-dc converter is the best start point imaginable when entering the smps world...
Verry true, but still one needs the electronics basics, and he does not seam to know much of anything, that almost guaranties failiure.
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Old 6th December 2012, 08:42 AM   #16
freax is offline freax  Australia
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Quote:
Originally Posted by DigitalJunkie View Post
^No,Not as shown.

Building a 2300W SMPS isn't going to be easy,especially if you've never built a SMPS before.
Or cheap, I'm scoffing at the cost of a 10 amp linear power supply atm for the same voltage range (13.8v)....

just to power an old pentium 2 firewall...
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Old 6th December 2012, 08:40 PM   #17
wilkes5 is offline wilkes5  United States
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Quote:
Originally Posted by MarianB View Post
@wilkes5 there are 2 books i recommend for you to read:
1.The Art of electronics
2.Power supply cookbook

.
thanks for help. just finished 1st semester of electronics in college. all we did was learn basic DC circuits and how to calculate total resistance/voltage/current/etc. do you still suggest the first book, because have bought a electronics book and it didn't really cover anything too much of any importance. is just listed devices and history.

maybe stop posting if the thread is a joke? it's just the "shoebox" guy made it sound easy.
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Old 6th December 2012, 09:12 PM   #18
wilkes5 is offline wilkes5  United States
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the "shoebox" guy

planning on mounting the amp in an DIY electric car conversion. believe the typical battery pack for something is like 120v. someone else from DIYmobile pointed out how you need higher voltage and the "shoebox" guy quote mentions 64 and 24 volt sources. my fault for not noticing such?

with 120 volt source, can anyone picture an easy to build power supply, fitting inside a shoebox to power 3000k rms?
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Old 6th December 2012, 11:01 PM   #19
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Quote:
Originally Posted by wilkes5 View Post
the "shoebox" guy

planning on mounting the amp in an DIY electric car conversion. believe the typical battery pack for something is like 120v. someone else from DIYmobile pointed out how you need higher voltage and the "shoebox" guy quote mentions 64 and 24 volt sources. my fault for not noticing such?

with 120 volt source, can anyone picture an easy to build power supply, fitting inside a shoebox to power 3000k rms?
First off your looking at 240 volt because the standard 15 or even 20 amp 120 volt branch curcuit will not supply enough power only 1800 and 2400 watts out of the wall. What your looking at more like 20 amp 240 volt that can supply 4.8kw or at least 15 amp 240 volt 3.6kw curcuit to start that not going to fit in a shoe box unless the shoes are for a nba center.
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Old 8th December 2012, 03:08 PM   #20
jlind54 is offline jlind54  United States
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Quote:
Originally Posted by MarianB View Post
@wilkes5 there are 2 books i recommend for you to read:
1.The Art of electronics
2.Power supply cookbook

Read them both in that order and i think after that you alone will at least smile reading your own posts so far.
Is this the second book you are referring to? Power Supply Cookbook, Second Edition (EDN Series for Design Engineers): Marty Brown: 9780750673297: Amazon.com: Books
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