Originally I wanted to work on a large power amplifier in a few weeks...It was going to be 4x50wrms class A/B IC amps. And a single subwoofer channel at 300W with a class D IC amp. This all spawned from a large transformer I found...
I found the large transformer from a motor home power supply(AC to DC powersupply I guess) and it had 4 breakers in it that totaled upto 85A! Not only that but I read places on the box that suggested it may be able to supply about 85A...I assumed it was at 12v ofcoarse especially at that amount of current and not much more also because it was supposed to be a DC converter... Well, I measured the secondary with my oscope in RMS measurement mode and measured 15V per side(center tap) for a total of 30V. Assuming that the rating is for dual 12v anyway, that comes out to around 2kw. Asumming that I can get even 1kw or maybe 1500w out of it makes me excited.
So, I figure I will be about 40 or so Volts rectified/filtered, But....I cannot even source 80A from a standard room that typically has a 25A breaker so I wanted to boost the voltage higher while my current sourability requirement drops and I don't require as much current anyway. What simple voltage boosting methods should I try out? Voltage trippler? I hneard it reduces current sourceability but that is obvious due to coservation of energy and that's what we want, the "trade-off" for higher voltage but what I want to know is if voltage multipliers are impractical, give bad trade-offs, not the best idea? etc...
EDIT: oops I wasn't thinking, the primary will draw less current not the 80A...But I am getting confused maybe it is a steup up transformer for AC I didnt see any large bypass capacitors anywhere...But for a lower guage stepup secondary to handle 85A, the primary would be able to handle even more then 85 right? It dosn't seem like it would but I don't know. What would you guys think? The smaller wire side is not exactly small by any means but idk about 85A. I need to look it over again..
Does the voltage multiplier sound feasable? And I know people always suggest things like why don't I get a different transformer to work with etc..Well, It was free...
I found the large transformer from a motor home power supply(AC to DC powersupply I guess) and it had 4 breakers in it that totaled upto 85A! Not only that but I read places on the box that suggested it may be able to supply about 85A...I assumed it was at 12v ofcoarse especially at that amount of current and not much more also because it was supposed to be a DC converter... Well, I measured the secondary with my oscope in RMS measurement mode and measured 15V per side(center tap) for a total of 30V. Assuming that the rating is for dual 12v anyway, that comes out to around 2kw. Asumming that I can get even 1kw or maybe 1500w out of it makes me excited.
So, I figure I will be about 40 or so Volts rectified/filtered, But....I cannot even source 80A from a standard room that typically has a 25A breaker so I wanted to boost the voltage higher while my current sourability requirement drops and I don't require as much current anyway. What simple voltage boosting methods should I try out? Voltage trippler? I hneard it reduces current sourceability but that is obvious due to coservation of energy and that's what we want, the "trade-off" for higher voltage but what I want to know is if voltage multipliers are impractical, give bad trade-offs, not the best idea? etc...
EDIT: oops I wasn't thinking, the primary will draw less current not the 80A...But I am getting confused maybe it is a steup up transformer for AC I didnt see any large bypass capacitors anywhere...But for a lower guage stepup secondary to handle 85A, the primary would be able to handle even more then 85 right? It dosn't seem like it would but I don't know. What would you guys think? The smaller wire side is not exactly small by any means but idk about 85A. I need to look it over again..
Does the voltage multiplier sound feasable? And I know people always suggest things like why don't I get a different transformer to work with etc..Well, It was free...
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