Автор Тема: power supply DELTA ELECTRONICS DPS-300TB help please.........  (Прочитано 581 раз)

hossam01983

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power supply DELTA ELECTRONICS DPS-300TB help please.........
« : 26 Ноябрь 2014, 17:44:13 »
privet Guys !!!!!!!!!!!!!!

i have power supply DELTA ELECTRONICS DPS-300TB 8) but some problem have it that some surface resistors destroyed :'(,
 i just need a scheme for this power supply or photo from the back for this power please,   the place of  destroyed resistor it is very close to the UC3842B IC if any one have this power supply upload photo please and i will be thank full to you

cheers!!!!!!!!!!!!

Tokes

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Re: power supply DELTA ELECTRONICS DPS-300TB help please.........
« Ответ #1 : 27 Ноябрь 2014, 20:35:52 »
Hi.
Which pin is attached to PWM UC3842B attached this resistor?
Maybe you can help this page with datasheet on this PWM:
http://www.datasheetcatalog.com/datasheets_pdf/U/C/3/8/UC3842BD.shtml

Or draw a part of the circuit, where the destruction resistor locate.

We will try to help you.

Best regards!
С уважением, Владимир

hossam01983

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Re: power supply DELTA ELECTRONICS DPS-300TB help please.........
« Ответ #2 : 28 Ноябрь 2014, 01:58:48 »
here is the place of the IC from the top :

http://

and from the back where the destroyed resistors exist:

http://

one of this tow resistors have number but it is not very clear to me nd the other one its number was completely erased, this tow resistors connected to ythe leg number 6 of the IC UC3842B and on data sheet it is the output leg of the IC ............!!!!

 

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