Making car amplifier SMPS with tl494 + DC Protection

[ssanmor]

Not yet.
Rod Elliot is not selling the design by now, at least to my knowledge! ;-) Only a joke.

But good news, I have some ideas of creating a website to sell some version of my SMPS, in fact I have almost finished a design with 4 mosfets and toroidal / ETD transformer, regulated output, etc (300-500W I hope). If I finally sell it, I will keep you updated.

Best regards,
Sergio

 

[2pist]

a web site would be cool! I just hate designing boards. I'm terrible at it. If you need a beta tester for your design, let me know.

 

[ssanmor]

Yes, we plan to sell the completed boards (with all the components), although we could study selling only the PCBs.
The boards will be of high quality (FR4, double sided, soldermask and silkscreen).

Best regards.

 

[himanshuraval]

very good Risto,
Nice work Risto. It may work very good and its very small pcb good. I was just going design a board with tl494. Why you used sg3524. why not tl494. I emailed you some design. I also design with tl494 SMD.
Hey tell me how can you convert PDF from Protel please

 

[sss]

But I have a question: Why do you use non-isolated feedback if the input/output GNDs are separated (as they should)?

do u need to separate the input/output gnd of a smps?

 

[himanshuraval]

Hi all
Look here this is Risto's pcb's SMD version. Sorry but this is manualy design by me i put down rectifier section from his old smps pcb and DIP replace by SMD
hey i attach it look

 

[himanshuraval]

Hi Risto,
what is your transformers data
1. core size ?
2. wire gauge?
3. how much turns?
4. chock core size?
5. chock wire gauge?
6. turns of chock ?
please answer all of its here

 

[himanshuraval]

Not yet.
Rod Elliot is not selling the design by now, at least to my knowledge! ;-) Only a joke.

But good news, I have some ideas of creating a website to sell some version of my SMPS, in fact I have almost finished a design with 4 mosfets and toroidal / ETD transformer, regulated output, etc (300-500W I hope). If I finally sell it, I will keep you updated.

Best regards,
Sergio

Hey Sergio,
wher is your project ? can you display thats pictures here

 

[himanshuraval]

Not yet.
Rod Elliot is not selling the design by now, at least to my knowledge! ;-) Only a joke.

But good news, I have some ideas of creating a website to sell some version of my SMPS, in fact I have almost finished a design with 4 mosfets and toroidal / ETD transformer, regulated output, etc (300-500W I hope). If I finally sell it, I will keep you updated.

Best regards,
Sergio

Hey Sergio,
wher is your project ? can you display thats pictures here

 

[himanshuraval]

Not yet.
Rod Elliot is not selling the design by now, at least to my knowledge! ;-) Only a joke.

But good news, I have some ideas of creating a website to sell some version of my SMPS, in fact I have almost finished a design with 4 mosfets and toroidal / ETD transformer, regulated output, etc (300-500W I hope). If I finally sell it, I will keep you updated.

Best regards,
Sergio

Hey Sergio,
wher is your project ? can you display thats pictures here

 

[ssanmor]

You can see it at Project 89 (under Projects -> Power Supplies) in ESP site (www.sound.au.com).
The project hasn't been updated since a long time, so several improvements have been made and I have learned a lot since I wrote it. I would like to make some changes to the article when I have time.

Enjoy.
Sergio

 

[2pist]

Sergio - any changes to the 3625 circuit that could easily be described here? I am building a board right now and would like to include any improvements you might have made while I'm at it. I am going to include a 100 ohm dead time resistor. anything else?

 

[ssanmor]

Well, the fact is that I am developing a design that I plan to sell in partnership with a company in the form of ready-built boards. If we finally decide to discard it for selling I will be very glad to publish any details here, but I hope you understand that I have signed an non-disclosure-agreement and that we can't publish any details by the moment.
As soon as we have finished some products that are in testing phase right now, I will be very glad show them here. They will be very good and competitive modules for audio amplification for home and car use.

Best regards.

 

[2pist]

Serg, I can appreciate your situation. I hope you follow through with it as it could reach a pretty large untapped market and get more people involved in DIY electronics. You could sell completed modules and Chassis in various forms allowing people to purchase them to suit their needs and put them together themselves. Kinda like buying a bare-bones computer in kit form. Good luck in your endeavor!

 

[himanshuraval]

Hello to every body.
I have read all this forums and any body have full schematic for making smps with tl494 + DC protection for loudspeaker than temperatur protection etc.

.

Hi Risto,
I designed this manualy this smps with TL494 + DC protection for loudspeaker than temperatur protection with amp. mute look my try to design

 

[ssanmor]

Do you have the schematics for that, himanshuraval, and want to share them?

Thanks!

 

[Risto80]

Hello

Very good design for SMPS.I will put my pictures for my smps with sg3524 these days.Put the schematic for this design please

 

[himanshuraval]

yes Risto,
I'll put it's schematic here after complate my this project
any suggetion please use my new
westwoodamp@yahoo.com

 

[Risto80]

Hello

Hi to everyone
If there is any questions about my SMPS put them on this site and i will answer them on this site.
These days I finised one Car amplifier who is basen on Kenwood KAC-716 the schematic for amp.+preamp.+SMPS +Protection is the same as schematic from KAC-716.Is sub amp. about 240W.It work perfect.If there is interesting I will put the whole project.
Here is the one picture from My last SMPS with SG3524.

 

[Risto80]

SUBWOOFER PROJECT?

I forgot to ask is there anyone who have project for making subwoofer boxes for 12 inches bass.