Hi,
I'm building a CV/CC power supply. I have the linear regulation part working already, but i want to use a switching pre-regulator to keep the voltage feeding the linear regulator close, as to avoid huge power dissipations.
My problem, is that i have never built a switching regulator, can someone point me in the right direction? I readed around the net about this, and i think i'm going to use a wall adapter to supply the input voltage (as to not have to mess with rectified AC directly, and try to dodge some of the EMI problems), followed by a buck stage, but i'm open to suggestions on the switching mode, and frankly everything . The good news, is that using a linear regulator means that the SMPS doesn't need to have low ripple.
I doubt i can find a pre-built inductor for this kind of use, i'm probably going to need building it myself, but hopefully the materials for that are available. It's another thing i never did before, however: making my own inductor.
Any tips are welcomed.
The needed parameters for the SMPS pre-regulator are:
Vout = 4 to 35v
Iout = 3A (continuous)
Ripple = not very important
Thanks for any info.
I'm building a CV/CC power supply. I have the linear regulation part working already, but i want to use a switching pre-regulator to keep the voltage feeding the linear regulator close, as to avoid huge power dissipations.
My problem, is that i have never built a switching regulator, can someone point me in the right direction? I readed around the net about this, and i think i'm going to use a wall adapter to supply the input voltage (as to not have to mess with rectified AC directly, and try to dodge some of the EMI problems), followed by a buck stage, but i'm open to suggestions on the switching mode, and frankly everything . The good news, is that using a linear regulator means that the SMPS doesn't need to have low ripple.
I doubt i can find a pre-built inductor for this kind of use, i'm probably going to need building it myself, but hopefully the materials for that are available. It's another thing i never did before, however: making my own inductor.
Any tips are welcomed.
The needed parameters for the SMPS pre-regulator are:
Vout = 4 to 35v
Iout = 3A (continuous)
Ripple = not very important
Thanks for any info.