Making car amplifier SMPS with tl494 + DC Protection

[Greg32]

Omibdimo please post what you have already and a description of what you are trying to achieve. Greg

 

[Greg32]

Omidbimo can you post what you have so far, and a description of what you wish to achieve. winding a transformer is not overly difficult but there is a lot to consider.
Greg

 

[OmidbimO]

Omidbimo can you post what you have so far, and a description of what you wish to achieve. winding a transformer is not overly difficult but there is a lot to consider.
Greg

thank you
praymery:i make 5 turn in half of core and more 5 turn in half or core
secondery:i make 20 turn in all of area core
how correct it??!
exusme im not good at english

ممنونم از شما
اولیه:5 دور در نصف هسته و 5 دور دیگر در نصف هسته
و بیست دور در ثانویه در کل هسته
این درست است؟
عذر خواهی میکنم انگلیسی من خوب نیست!
الان تبدیل ولتاژ من کار میکند اما من میخواهم مطمین باشم از نحوه پیچیدن هسته!

 

[OmidbimO]

Omidbimo can you post what you have so far, and a description of what you wish to achieve. winding a transformer is not overly difficult but there is a lot to consider.
Greg

this is my shematic

An externally hosted image should be here but it was not working when we last tested it.

 

[Greg32]

Not sure what happened but the picture is not view-able. what are the secondary voltages you are trying to create? what power?

 

[Greg32]

have a look here Switchmode Power Supply For Car Audio
this has a lot of good information

 

[OmidbimO]

Not sure what happened but the picture is not view-able. what are the secondary voltages you are trying to create? what power?

1000 wat (2*50v)

 

[OmidbimO]

have a look here Switchmode Power Supply For Car Audio
this has a lot of good information

I'm wrapped around the core, but the MOSFETs are getting hot

 

[Greg32]

post a picture of the core?

 

[OmidbimO]

post a picture of the core?

An externally hosted image should be here but it was not working when we last tested it.

404 Not Found

 

[OmidbimO]

404 Not Found

 

[OmidbimO]

CAN YOU OPEN PICTURE?

 

[Greg32]

Hi yes your first link worked, i think u need to rewind the transformer and make in neater and more uniform. here is a picture during the winding of one i made.

 

[OmidbimO]

Hi yes your first link worked, i think u need to rewind the transformer and make in neater and more uniform. here is a picture during the winding of one i made.

HI
im not undrastand . im not good at english
tanks

 

[Greg32]

Rewind your transformer. Make it tidy.
Greg

 

[OmidbimO]

Rewind your transformer. Make it tidy.
Greg

ok but whats this problem??

 

[WINTEK]

Please give me your email ID,I will send you directly because I cant upload here more than 102400-bytes

could you please forward me PCB layout of car amplifier



dhanya_els@yahoo.com


SURESH