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I'm working on a concept pocketqube and am currently developing the power management system, I'm looking for the easiest and most efficient way to regulate 3.3v from a battery and charge it using MPPT. I will be using gallium arsenide triple junction cells, It will have a power consumption of under 20ma at 3.3v and needs regulated voltage for the atmega 328p au chip and other IC's, the cells I will be using have a Voltage (Open Circuit) of 2.62 V and Current (Max Power) of 14.6 mA. I have found chips such as the SPV1040 that claim to integrate MPPT circuits, I will need to charge a 3.7v cell (aprox 500Ma). I have a very basic understanding of charging circuits so my question is, are there any efficient MPPT/Battery charge controller IC's on the market or easy to design/already existing devices? Obviously form factor is important since this will be going in a a very reduced space.
All input is deeply appreciated and and collaborations are welcome since working out all aspects of such a project is somewhat complicated.
Thanks
All input is deeply appreciated and and collaborations are welcome since working out all aspects of such a project is somewhat complicated.
Thanks