• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 591 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Energy Harvesting Components

James Sinka
Prodigy 10 points
Other Parts Discussed in Thread: BQ25570, BQ25505, BQ25504

Hi,

I'm very new to energy harvesting. I'm a photovoltaics researcher and would like to validate the recharging ability of a solar cell.

How do I build the proper circuit to provide power to BLE beacon as to minimize the drain on the battery?

Thanks,

  • 0
    TI__Mastermind 21590 points
    Hi James,
    To get started, you can look at EVMs for devices like the BQ25570 and the BQ25504. Both devices have an integrated boost converter to increase the charging voltage. Both devices have a cold start voltage of 330mV. This means that your Energy Harvester has to have a minimum open circuit voltage of 330mV for the IC to harvest its energy. The BQ25570 also has a configurable Buck at the output to power a load. The load on the BQ25504 is connected to the battery. You can also look at the BQ25505 if your application required a primary and secondary cell. you can also look through the datasheet of these devices for further explanation of how they work.
    Regards,
    Raheem