296 Results for "MPPT"

DPP Architecture Test - PCB Design and Bill of Materials
Log from MultiMPPT
This PCB was designed to test the DPP architecture used in MPPT designs. The software used to designed the PCB is Kicad 6.To get the PCB design (e.g. schematic, PCB, gerber files) check the following repository. The tests performed with this PCB will...

How to connect the DPP Architecture PCB to the Solar Setup
Instructions from MultiMPPT
The following image shows a typical photovoltaic (PV) string composed of serially connected solar panels (with additional bypass diodes) connected to two DPP Architecture PCBs. While it is possible to connect the PV string to a single DPP...

Links to External Stuff
Hacker page by C. Prichard
Some Interesting Stuff:Blue Sea Systems has some inexpensive, 80-volt DC fuse products.Read for perspective on American Culture (Too Many Experts Protecting Interests, Not Looking For A Way To Make Solar Energy Affordable)Images of Conformal Building...

IOTsatcom needs the community voice!
Hacker page by Fabio Balzano
Hi there! Call for the community voice!my project at: IOTsatcom projectI need help to decide if to add extra features or not, to be specific:* Do you prefer a modular design or to have everything integrated on a single PCB board?Please, could you give...

A light market analysis
Log from Low cost solar panel solution (MPPT + sun tracker)
Having a fully working solar panel system that I designed for less than 55 USD, I wondered if there was a business model for such a system. The critical device is obviously the solar tracker as we can already find cheap MPPT controllers everywhere on...

1Charger
Details from 1Charger
Background:I wanted a charger for portable power that could be used with solar panels, TEG elements and dynamo. It was also important that the charger could take all available power. I quickly realized that LiFePO4 are the best batteries available. LiFePO4...

Still Alive
Log from $1/W True MPPT
Despite it being over a year since my last project post, I'm still alive.Quite a few things have changed since my last post. I’ve had a major job change, a house change, and a +1 to the family. Needless to say, I haven't’ been able to do much on this...

Experimentalist musings
Log from SentriFarm
I figured I'd measure my ESP8266 test system, so I scrounged a 1Ω resistor and estimated the average current at 70mA, i.e. 230mW, even when just sitting on a timer. This is more than the solar panel at peak, and no amount of MPPT will help us with this,...

Bad Ideas
Log from $1/W True MPPT
So I've been fretting over saving money on this project to get the Bill-of-materials (BOM) cost down. I've had a fair share of ideas cross my mind. Many I'm too ashamed to post on this blog, but three stuck out as being somewhat plausible.Getting rid...

Power system
Log from SoundBeacon
One of the goals of this project was to be able to prototype quickly. So I wanted to mostly use components I already had laying around, was already familiar with or had previously worked with.Many BLE beacon projects run from a coin cell, but I decided...

Project Design
Log from miniSolar Charger
Theory of operation:The miniSolar is designed to take in power from a 2-3 watt solar panel, charge a small lithium battery, and charge a device. Since USB devices tend to draw a constant current, the battery buffer is required to supplement the solar...

Description of Operation
Log from 100W MPPT Prototype Charger
What follows is a summary of how the unit operates. For details review the firmware: it is thoroughly documented.The unit is based on a Microchip PIC16F1769 8-bit, mid-range CPU with peripheral support optimized for SMPS applications. It...

Libre Solar -Building Blocks for DC Energy Systems
Details from Libre Solar -Building Blocks for DC Energy Systems
Unique features There are lots of charge controllers on the market. So you might ask yourself why this one is special? Extensible hardware The PCB of the Libre Solar charge controller contains lots of interfaces which could be useful for applications...

Increasing the efficiency under shading conditions
Log from MultiMPPT
The proposed design has an increased efficiency under partial shading of PV modules, this is a benefit of the DPP architecture with an MPPT that has multiple inputs, one for each panel in the string (array of PVs connected in series). The power...

testing testing and retesting
Log from Low cost solar panel solution (MPPT + sun tracker)
My latest modification of the software introduced quite a lot of necessary improvements but also some complexity into the code and thus bugs occured... The reason for these bugs were simply a lack of tests... The system was running under "normal" conditions...

|<
<
10
11
12
13
14
>
>|