296 Results for "MPPT"

On to the Next Rev, A code update
Log from Solar Energy Generator
I have been digging through lots of TI literature on how to use their libraries to control my solar generators power conversion hardware. This is a fair amount of new code territory for me as the way the write these algorithms its all in optimized assembly...

Solar Panels
Log from Light Electric Utility Vehicle
As this is a solar powered vehicle I should probably say something about the solar panels. The panels I am using are 95 watt Tenesol 95 watt monocrystaline panels. Each of the 4 panels measure 556mm x 1231mm. This has been the determining factor in the...

Smart Battery, Smarter Power Pack
Details from Smart Battery, Smarter Power Pack
The project aims to build a power pack solution thatCharges fast / allows devices to charge even while charging itselfProvide consistent charging to devices connected to itBe as energy efficient as possibleProvide Consistent information about its own...

What is this Thanksgiving????
Log from 1 Square Inch of Power
Silly me forgot that everything in USA is closed for the Thanksgiving weekend. I sent off the board designs to get made by OSHpark last week.....Anyway, while I'm waiting, I uploaded the gerbers, BOM, schematic and added links to the OSHpark board (...

Autonomous Solar Powered System
Log from Arduino MPPT Solar Charge Controller
The MPPT charge controller works pretty well by now, but there are a few more steps necessary to make this an autonomous system that does not require human intervention. I added a power controller board that takes care of that. To reduce internal cables...

Infinity Solar Bank v4.01
Details from Infinity Solar Bank v4.01
The Infinity Solar Bank has the following features:● Supports 1-6 Supercapacitors conventionally, can be hacked to support 12 supercapacitors with a bit of ingenuity.● Charging is controlled by IDT’s ZSPM4523 Solar Supercapacitor MPPT Charger●...

Energy Harvesting Module
Log from Modular Potato Powered Robot
Here is a 3D model (kicad 3D view) of the Energy harvesting module. It is based on a BQ25504 Energy Harvester (with MPPT and Battery management), pair with TPS63030 Buck/Boost Converter. It's perfboard/breadboard compatible. There is also a 1V precision...

Difference with another ultra low power harvesting board
Log from Tiny Solar Energy Module (TSEM)
I saw this article on Hackaday.com about the this BQ25504 Ultra low power Solar LiPo Charger sold by Kris Winer on Tindie. I wish that article was about my TSEM. Here I compare the differences with my TSEM. The BQ25504 is...

(In)Accurate Measurements
Log from Solar MPPT Charger for 24/7 "IOT" devices
Putting control of a device like this into firmware requires accurate measurements of the data required by the algorithms and probably the area I spent the majority of time while testing with prototypes was getting reasonably accurate voltage and current...

Slow progress - but a new name
Log from Solar MPPT Charger for 24/7 "IOT" devices
Introducing "makerPower MPPT Solar Charger"Engaging with Crowd Supply has been interesting. They see this device from a fresh perspective and that has resulted in some changes. One is the name. To me "Solar MPPT Charger" (or "MPPT...

TRIAC Based Transfer Switch
Details from TRIAC Based Transfer Switch
I've had a 100W PV system setup in the house for the past year that I've used to help build my little off-grid ecosystem of projects and get experience with solar. One thing you learn really quick is how inefficient & unreliable solar is, particularly...

First Stab PCB
Log from MPPT for low voltage solar harvesting
Well, that happened quickly. Since the last log, I have added a #SOICbite Programming/Debug Connector Footprint and a couple of mounting holes, but other than that, this is basically the same circuit as in the First Stab log: A few advantages...

Postmortem Updates
Log from 100W MPPT Prototype Charger
For anyone that really wants to build this thing I've posted updated code containing two improvements. Firstly, I fixed an annoying firmware failure mode that would require rebooting the charger when clearing snow off the PV panel. It wasn't...

52 Boards
Log from 52 Boards
As the description says, this is inspired by my partner, who wanting to learn to carve decided to carve one spoon a week. It's been fun to watch the progress of learning the various tools involved and using them for different features or styles. Beyond...

solar powered boat
Details from solar powered boat
Most electric boats used by regular boaters today are dingys, not large enough to live aboard, and the cost for systems like torqeedo or ocean volt is prohibitively expensive to many, inefficient and directly in conflict with any sort of open source...

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