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  #3901  
Old 07-14-2018, 11:57 PM
bistander bistander is online now
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My other DC boost converter

I have two DC boost converters. I call the one from the previous post the digital because it is adjusted digitally. The other boost is similar except it is adjusted by trim pots for output current limit and output voltage, hence I refer to it as analog. They both operate on PWM (digital control). Anyway I just tested it. Turion's circuit needs two boost converters.



From left to right. First boost converter (digital adjustable), second boost converter (analog adjustable), and my watt meter.

I used a 13.3 ohm load resistor.

Input 12.11V, 5.27A, 63.8W
Output 27.67V, 1.99A, 55.06W, 86.3% efficient.

Input 12.4V, 1.28A, 15.7W
Output 14.13V, 1.01A, 14.27W, 90.9% efficient.

bi
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Last edited by bistander; 07-15-2018 at 02:04 AM. Reason: Trying to downsize photos
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  #3902  
Old 07-15-2018, 08:40 AM
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ilandtan ilandtan is offline
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Quote:
Originally Posted by Turion View Post
Dave,

Thank you for finding this patent application. It is interesting to note it's not a granted patent, so again nobody can capitalize. If you look for the guy or the company no surprise that there is the big goose egg to that concept or company. I see some similarities to the 3B idea, however. The WO is stating an existence of a source of power, that has been discussed on other threads, and I believe it is a clear description of a D.S. AEG.

jm2c

John
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  #3903  
Old 07-15-2018, 01:21 PM
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Matthew Jones Matthew Jones is offline
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Quote:
Originally Posted by bistander View Post
I have two DC boost converters.....
Thats what I was telling you is the analog's are better. More than likely if you raise the input voltage you'll gain a couple of points on either one. They tend to run more efficient. With these simple little systems I tend to run a 24v and bring it up 36v. The returned energy ends up being less strain on the batteries and the overall efficiency of everything goes up especially in the batteries.

Also make sure to use big wires for the same reason. Test leads don't do the job.

Matt
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  #3904  
Old 07-15-2018, 02:52 PM
wrtner wrtner is offline
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Originally Posted by ilandtan View Post
Dave,

Thank you for finding this patent application.
It's priority date is 1990.
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  #3905  
Old 07-15-2018, 03:38 PM
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Turion Turion is online now
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Patents

When you are looking at a patent on line, most of the patent sites have a listing entitled “similar patents” it is a giant rabbit hole with lots of branches and tunnels, but I find some really interesting stuff from time to time.

As to boost modules......the efficiency at which they work will determine how successful your system is. They have boost modules that are in the very high 90’s for efficiency according to their specs. It’s a matter of how much you want to pay for the efficiency.
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Last edited by Turion; 07-15-2018 at 03:42 PM.
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