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Highest amplifier supply rails?
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M4trix View Drop Down
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Joined: 23 June 2009
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Points: 465 		Post Options Post Options   Thanks (0) Thanks(0)   Quote M4trix Quote  Post ReplyReply Direct Link To This Post Posted: 08 March 2012 at 7:48pm
Originally posted by DjLeco DjLeco wrote:

Power is power, but at me is CONTINUOUS power!


Yeah, you're right. Btw, you did a nice job there with your amplifier. Congratz. Clap
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It will follow, 2 ch on BTL for big power into 8 and 4 ohms, AB-B class sound, and in next future, I will develop a big power classD amp, (bass exclusive15Hz-330Hz) a big power class TD amp, (fullrange 20Hz-20Khz) and maybe a easier version of I class amp.
 
Now, waiting for my PCB designer, to make the PCB design of SMPS, so therefore, proceed to build complete LECO amplifier, amplifier with continuous power cappability, not burst.
 
SMPS, almost 5200Watts peak power, here:
 


Edited by DjLeco - 09 March 2012 at 1:34pm
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Points: 3881 		Post Options Post Options   Thanks (0) Thanks(0)   Quote studio45 Quote  Post ReplyReply Direct Link To This Post Posted: 08 March 2012 at 9:10pm
You are crazy, you wouldn't see me purposefully shorting out something with a power supply that big. However it's nice to know your amp won't break if someone crazy buys it ;) Presumably the finished version will cut the power if it detects a short circuit rather than driving 27A into it all night?
Studio45 - Repairs & Building Commotion Soundsystem -Mobile PA
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Originally posted by DjLeco DjLeco wrote:

I use on mine modules of amplification, +/- 96-98Vdc
 
AB-B Class module amps.
 
Test here:
 
 
 
That is indeed a bit mad. Can I ask why you disconnect and connect the load while a lot of power is coming through? The arc damage to the output tag on the amp board must be a bit of a mess! This is a Mosfet circuit I take it?
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Originally posted by studio45 studio45 wrote:

You are crazy, you wouldn't see me purposefully shorting out something with a power supply that big. However it's nice to know your amp won't break if someone crazy buys it ;) Presumably the finished version will cut the power if it detects a short circuit rather than driving 27A into it all night?


 
I sold deja more than 30 modules of amplification, till now, mine co-forumist frineds, trust me and my quality design, of amplifier module.
 
 
 
 
 
 
 
 
Connecting and disconnecting the load at such big power, gives to the smps, very abrupt differences of power consumption, very big differences of di/dt, so, a weak design, will blow the switching devices, more than sure.
 
Audio signal is  an "mixture" with big differences between min and max peaks, so the SMPS must handle very big differences of consumption, and must be capable to handle it continuous without limmitings.
 
Mine smps will have couple types of protection, short circuit , overcurent , thermal, and will be dual sosftstart type, also for main AC and secondary DC, total independent, for minimising inrrush current.
 
The SMPS will offer multiple DC outputs, all of them protected of shortcircuit, but I will make a thread, when everything will be done, with pictures and tests.
 
Maybe today, I will make a test with mine modules in BTL mode, on 8 ans 4 ohms dummy load, to see the output power, and all.
 
Keep close!
 


Edited by DjLeco - 09 March 2012 at 2:07pm
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Points: 7752 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 09 March 2012 at 6:16pm
Haha - nice videos, but if your (life) insurance company sees this, your premiums are going uuuup! LOL
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Hope they are CE marked and EMC approved!
Kevin

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For DIY use, no need any approvement...
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GAZ. View Drop Down
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Points: 2428 		Post Options Post Options   Thanks (0) Thanks(0)   Quote GAZ. Quote  Post ReplyReply Direct Link To This Post Posted: 09 March 2012 at 10:16pm
DJ Leco's amps certainly seem robust! flat out into 2 ohm, and shorting it out at full power and it doesn't go bang!
A lot of amps out there would not take that sort of abuse and still work afterwards.
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Points: 5157 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 09 March 2012 at 10:52pm
Ok. But your posts seem more like an advert for your amplifiers. Can you post the schematics for them in the spirit of the forum.
Kevin

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Old Croc
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Points: 2428 		Post Options Post Options   Thanks (0) Thanks(0)   Quote GAZ. Quote  Post ReplyReply Direct Link To This Post Posted: 10 March 2012 at 12:07am
Originally posted by kedwardsleisure kedwardsleisure wrote:

Ok. But your posts seem more like an advert for your amplifiers. Can you post the schematics for them in the spirit of the forum.



Doesn't come across to me as being an advert, more of a "Hey Look what I made!"
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Points: 5157 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 10 March 2012 at 12:43am
I was being polite in a restrained, English way
Kevin

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