variable switching power supply

goldsmith said:

Dear billu8660
Hi
There are many ways . that all of them are simple . but you can use an LM2576 ADJ , and an optpcoupler and a mosfet and a filter to achieve your purpose as well .
Best Wishes
Goldsmith

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goldsmith said:

Hi again
My mean wasn't use some of them in parallel . as you probably know , it's out put is a PWM , and with an opto coupler or a driver e.g IR21xx you'll be able to abuse from that IC !!!!! it can't understand that what you did on itself ! it has a feed back that should prepare ! ( about 1.25 volts )
You can play with the specification of that IC and enjoy the result !
Did you get what i mean ?
Best Luck
Goldsmith

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goldsmith said:

Hi again
Are you familiar with basics of buck converter and theorem of it's operation ?

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goldsmith said:

I think , thus you'll have some problem without knowing basics . i suggested a good way that you can do , but you didn't get my mean , because you're not familiar with the basics ! it is a big problem . if you want that i give you a circuit , no problem , but surely you'll have some problems .
Best Luck
Goldsmith

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