dynamag
Newbie level 4
Hi
I am looking at designing a solar panel based lead acid battery charger. Say I use a 19VDC panel of 75Watts Peak. I am looking at getting the maximum output from the panel into my battery, so I think I should try to use MPPT in my design. I am going in for either a non-inverting buck-boost converter or one of he capacitor coupled converters such as Cuk or Sepic for my design. I need to measure the power flow from the panel with my uP, and that involves generating 5VDC. I also need to drive my MOSFETs with gate drive circuits that will require 12VDC or so to make the MOSFETs switch properly.
Should I use the battery to generate the 12V? or should I use the panel to generate it? The same question for the 5V also.
Should I use a simple 7812+7805 based linear regulator to get my dc voltages? Is there any other, more efficient method available?
These may be very basic questions, so I thank you for your patience with me.
I am looking at designing a solar panel based lead acid battery charger. Say I use a 19VDC panel of 75Watts Peak. I am looking at getting the maximum output from the panel into my battery, so I think I should try to use MPPT in my design. I am going in for either a non-inverting buck-boost converter or one of he capacitor coupled converters such as Cuk or Sepic for my design. I need to measure the power flow from the panel with my uP, and that involves generating 5VDC. I also need to drive my MOSFETs with gate drive circuits that will require 12VDC or so to make the MOSFETs switch properly.
Should I use the battery to generate the 12V? or should I use the panel to generate it? The same question for the 5V also.
Should I use a simple 7812+7805 based linear regulator to get my dc voltages? Is there any other, more efficient method available?
These may be very basic questions, so I thank you for your patience with me.