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• Working with the documentation, open the box and test the out of the box experience. Show us what you discovered through text, images, videos, and/or any other media, so the reader understands what is involved in using the product.
• ADP5091-2-EVALZ – this variant will be used for the roadtest.
The ADP5091 demonstration platform is a plug and play evaluation board (ADP5091-2-EVALZ) for energy harvesting. The evaluation board includes the photovoltaic (PV) panel and all of the power management to enable devices to be powered using energy harvesting. It is based on the Alta Device PV cell and the ADP5091 energy harvesting power management IC. The PV panel converts the light to 0.8 V electrical energy. The ADP5091 boosts the input voltage from 0.8 V to 3.5 V and stores the energy in a supercapacitor. The ADP5091 has a regulated output with programmable output voltage. By combining a low dropout (LDO) regulator and a boost regulator, it offers a more compatible output voltage than the output of a main boost regulator. The Alta Device PV cell is a light harvesting, dye sensitized PV cell. It is optimized for indoor environments, where lux levels of 200 lux to 1000 lux are typical. The ADP5091 is an ultralow power, synchronous, boost dc-to-dc regulator. The ADP5091 runs from input voltages of 0.38 V to 3.3 V and provides a high efficiency solution with integrated power switch, synchronous rectifier, battery management, and one regulated output. The demonstration platform provides an easy way to evaluate the device. The system also plugs directly into the Analog Devices WSN demonstration platform.
• Plug and play energy harvesting platform
• Compatible with Analog Devices, Inc., wireless sensor network (WSN) platform
• Solar panel harvester included
• One regulated output with programmable output voltage
• RoHS compliant
Evaluation Board ADP5091ACPZ-2-R7
Photovoltaic and Solar Panel Harvester
|Begin enrollment:||June 9, 2023|
|End enrollment:||July 10, 2023|
|Select roadtesters:||July 11, 2023|
|Ship unit:||July 17 2023|
|Begin Roadtesting:||July 22 2023|
|Element14 follow up:||August 22 2023|
|Post Reviews by:||Sept 22 2023|
ralphjy - due date Sept 29 2023 (due to failed board)
That's an interesting roadtest, but unfortunately I will not be able to apply. Good luck to all roadtesters!
good point. I didnt see that in the spec either. Imagine it is not a power supply as such, energy stored in a cap, and how fast current gets used, rather than a rated current, altho I expect there are things like solder runs that limit the max current capability, or some R to limit cap current, not just cap resistance.
This unit looks very similar to a unit I bought from TI about ten years ago.
I agree that it would be good to know more about the power output of the panel to infer the kinds of loads it can support.
It seems that it claims a "10cm^2 GaAs solar cell can harvest 130 μW in 100-200 Lux". Based on the images of Alta Devices cells in the presentation, it seems the panel is probably in the region of 10-12cm^2, so this figure seems reasonable. One has to be aware that there really isn't all that much energy that can be had from indoor lighting because the amount of light itself is so limited - hence why it is "harvesting" and intended for intermittent loads with a very low average power.
Hi, I may be interested in signing up for this Roadtest, but need to have some idea of what this demo can supply as far as power. Can you tell me what the specs are for the PV panel, since that will govern the overall power that can be supplied by the demo. I understand that the Roadtest is really about the ADP5091 energy harvesting board, not so much about the PV panel. But in order to fairly evaluate it, I need to have some idea of what it could power over time. For example, if it's a 100 mW panel, then I can go from there and look at what kind of intermittent duty cycle the demo could support. Thanks!
I am planning to apply.