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    variable switching power supply

    i want to design variable switching power supply from 0 to 60v with 0.001 steps of volt and 30 amp , how can i attempt this......plz help.

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    Re: variable switching power supply

    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
    When you sensed that i can help you , feel free to ask me .
    ************************
    Experience is a good professor of mine !
    ************************
    The only thing that i couldn't understand yet , is why humans should fight together ? why not helping each other to have a better world ?



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  3. #3
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    Re: variable switching power supply

    Quote Originally Posted by goldsmith View Post
    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
    Thats what i want to know how ..... does lm2576 works in parallel....if yes are there any additional componemt requirement....plus i was studying about LM5116 seems that it can also work .....plz i want to know detailed solution



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    Re: variable switching power supply

    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
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    When you sensed that i can help you , feel free to ask me .
    ************************
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    ************************
    The only thing that i couldn't understand yet , is why humans should fight together ? why not helping each other to have a better world ?



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    Re: variable switching power supply

    Quote Originally Posted by goldsmith View Post
    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
    it is utterly confusing bro circuit plz so that i can understand



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    Re: variable switching power supply

    Hi again
    Are you familiar with basics of buck converter and theorem of it's operation ?
    When you sensed that i can help you , feel free to ask me .
    ************************
    Experience is a good professor of mine !
    ************************
    The only thing that i couldn't understand yet , is why humans should fight together ? why not helping each other to have a better world ?



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    Re: variable switching power supply

    Quote Originally Posted by goldsmith View Post
    Hi again
    Are you familiar with basics of buck converter and theorem of it's operation ?
    i need circuit not lecture :\



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  8. #8
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    Re: variable switching power supply

    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
    When you sensed that i can help you , feel free to ask me .
    ************************
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    ************************
    The only thing that i couldn't understand yet , is why humans should fight together ? why not helping each other to have a better world ?



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    Re: variable switching power supply

    Quote Originally Posted by goldsmith View Post
    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
    circuit plz



  10. #10
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    Re: variable switching power supply

    Well , no problem , tomorrow , i'll try to draw it for you .
    Best Luck
    Goldsmith
    When you sensed that i can help you , feel free to ask me .
    ************************
    Experience is a good professor of mine !
    ************************
    The only thing that i couldn't understand yet , is why humans should fight together ? why not helping each other to have a better world ?



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