UCD 25 watts to 1200 watts using 2 mosfets

Hi Juan,

SP ERR LED works only when relay not energised (only 3 sec.)

When Q5(BS170) not conduct LED1 lit

Regards
MANOJ

oh .... ok, understand now :), thank you, I will give a few more revisions of the layout, the PCB supply is quite big, I will see if I can reduce a bit more if not I do not mind this is one of my supply and is quite large = (grande) = large :p

Best Regards
Juan
 

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Hello mister Manoj I think the layout is almost done can you give a check when you get chance = "time" on the schematic you send me there is another option "Optional limiter" since my PCB is quite large I think I can find some space for that circuit what part number is the LDR mister Manoj ?

Best Regards
Juan
 

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..during. my test I was exchanging speaker load between a real 6ohms speaker and a dummy 8ohms resistive load...but I haven't intentionally fired it up without speakers..but if kartinos finding is correct it should then survived..;)

BTW in the schematic I miss to include the 4k7 Gate to Source resistor and a 15k tap to +Vdd feeding the high side.

Season's Greeting's!