i need step-down transformer

[hamodye]

Hi every Body
I am very happy to find this wonderful ed website , i hop have great time for us
in staring ,
I am making a project via Multisim , and i need step-down transformer specific value .
but i am not founding it
can you help me and tell me from where can i find type of transistor and modified on it ??
and if i want customize part can i do it in Multisim9 ??

 

[duke37]

You will need to give much more information so that you can be advised what can be obtained. Do you want a transformer or transistor?

 

[hamodye]

thank you very much for replay , i want transformer , but i found it in Basic component but i don't know , how can i customize transformer or any another component .

i found transformer have 2 input & three output ,
this output is two positive and one negative ?

 

[(*steve*)]

Do you want to change the properties of a component in multisim?

 

[hamodye]

no , not change proprieties of multisim
but customize some component not found slimier of it in data base
like transformer 3.5 Amper , how can i have one of it ?

 

[hamodye]

I need transformer step-down , input 220 v 60Hz and output 6.5V 60Hz

 

[(*steve*)]

So nothing to do with multisim then?

Have you tried going to a site like digikey and searching for a suitable transformer?

 

[hamodye]

So nothing to do with multisim then?

Have you tried going to a site like digikey and searching for a suitable transformer?

why nothing to do in multisim ??
what is this site ??
the one of advantage of multisim is simulation what you want before make order of the part
after you sure about you design is perfect
you can make order and you sure its work correctly

 

[davenn]

so what transformers are listed in multisim. I have never used that simulation software so not sure how it works.

but if its like some others, you dont have to actually show a transformer, you just need to provide an AC generator source at the voltage you require.... ie. 6.5VAC @ 60Hz then the rest of the circuit following that

Dave

 

[hamodye]

so what transformers are listed in multisim. I have never used that simulation software so not sure how it works.

but if its like some others, you dont have to actually show a transformer, you just need to provide an AC generator source at the voltage you require.... ie. 6.5VAC @ 60Hz then the rest of the circuit following that

Dave

hi man
you can see the type of transformer in component in basic ,
I want use transformer because i want make real design ,

 

[(*steve*)]

OK, so you can see a transformer. What happens when you try to use it? Do you want to set a particular input and output voltage?

 

[hamodye]

i want convert 220 v to 12 volt
using transformer step-down
but i dont found type of transformer doing that , so i am asking about customize transformer

 

[(*steve*)]

OK, it sounds like you need to create a custom component in Multisim. (I feel like a paperclip)

Are you familiar with this process?

 

[hamodye]

oooh its very nice web site , 1se time i see it , i will read in it and work to be familiar with it
thank you very much
i want ask you about another thing ,
how can i know the write inductor want use in it ??
the resistance from ohm law , V= IR ,
what is ration between rissitance and inductor ?
i remember one rules include frequency and capacitor value

 

[(*steve*)]

In general, you'd want to use the values for a real transformer. The tool you're using is a simulation. If that's not available, use an ideal transformer.

Any specifications you make up will probably not match the reality of a transformer that you may be able to get in real life.