Search results

i want make this circuit for first experience and make ur smps later the output inductors are 15uh in ur smps! winding transformer instruction in my smps is: primari:30turns awg23 3strands in parallel secondary:26turns awg23 withe center tap 5strands in parallel

i decided make bottom circuit first.because is simplest and i have no experience in making smps.but i made many audio amplifier (circuit analysis) i have a question for u i wound the etd49 according to your instructions in this post...

hi mr silvio are u here? i have few question from u

i find 2 mistake in ur schematic 1)in one schematic middle output di ode pins is connected to top but in another schematic not connected to top line which one is right? 2)also r14 resistor in schematic is 10k but in pcb is 220ohm for auxillary power smps output negative line is connected to...

unfortunately i do not have oscilloscope For example, in the pictures below in some schematics little switching power is 12v but in another schematic is 15v or marked resistors in some schematic is 22k but in another is 18k which one is correct?

i have one etd49 but i do not know what its core is How should i understand what is core material? ok i will use input line filter sure i saw ur smps and ludo smps videos thanks

i will use 2*0.47nf 250v in parallel to output rails and install them in bottom board sure also i will try enhanced input capacity to 2000uf and use aluminium sheet all round smps(now i have enough space in box) total empty space in my amp box is 24cm*30cm i will use 15*24 for this smps and...

thanks mr silvio for answer how much noise in this smps? is proper for audio work? i draw new output diods in bottom pic i used adobe photoshop so my pic is not beauty:D point A should be connected to point B from wire in bottom pcb also i removed 2led in output rails bottom pic shows my ampli...

hi i modified pcb for use mur1560 instead RURP820 also i removed output inductors.is this problem? (my ampli box has not enough space for this smps.so I was forced remove inductors) now pcb size is 23*14 mr silvio.why i can not to send pm to u and everyone?::SD

thanks mr silvio 1:bottom pic is correct about winding? 2:what is point 1 and 2 in bottom pic? 3:i did not found c17(1uf 825v).can i use 1uf 630v polyster instead it? 4:can i use 7812 reg ic instead 7815? 5:can i use inductors in output rails?(like mr silvio 1kw smps)

hi to all i have some questions about 1kw ludo smps 1:in bottom pic what is multiturn and R1 value? 2:what is relay voltage and current in ludo smps? 3:does work ludo smps without protector circuit? 4:plz tell me core etd49 Winding instruction detailed

what is these?and what is these value? can i remove these?

mr silvio 1:maximum voltage is +/-52v for my amplis 2:input voltage is 230-240v ac 3:i have edt49 but i dont know its core material::SD this is my trafo pics:

i specified differences in bottom pic:

mr silvio there are 2 pcb from ur smps which one is correct and final pcb?

mr silvio what is toroide core material?ferrit or iron powder? respectfully

hi mr silvio in private message you said me you did not see my schematic pic I meant from capacitor 680uf in bottom pic can i use 2*680uf 200v as follows and what is number 5 piece in bottom pic? and does has this smps overload and s/c protection? respectfully

detex 1.2kva smps hi to all i want build detex smps is this good circuit? how much smps noise? is it works? respectfully