Parts for solar charge controllers?

1

Hi,

Could someone please help to upload Fritzing parts for common solar charge controllers? For example, the DFR0264 and BQ24074.

2

There doesn’t appear to be a part for the DFR0264 but the BQ24074. is in the Adafruit Fritzing library on github ready for download. I’m not sure it is worth making a part for the DFR0264 as I expect the Adafruit part would do for both.

Peter

3

How are you importing the BQ24074 part exactly?

When I download the master branch of Adafruit’s part collection, I can see that is has the older LiPO-only charger, but alas not the hybrid Li-Ion / LiPO BQ24074.

4

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which is

Which is found in technical details on the Adafruit page and

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Adafruit USB LiPoly Charger.fzpz

Which appears to be the original charger. You need to use google to search for Fritzing parts. Typically a search for “fritzing part BQ24074” which has this web page as the first hit, will find the part. In Adafruit’s case reading their excellent web pages looking in technical details for references to Fritzing parts is also a good bet.

Peter

1 Like
5

Well, thank you for pointing out the file. I was using the right repository, but the Fritzing import process didn’t work as documented. And I can’t find the part by searching for any of its keywords.

Working around this by first opening my project, and then using the File menu to navigate to the specific part in a git clone / archive download.

6

Sorry to reopen an old post, but I would like to request a DFR0264 fritzing part. I believe there is sufficient difference to justify DFR0264 as a separate part, and i expect it to become more popular as IoT devices extend to remote applications. Reasons:

  1. The BQ24074 does do much the same as the DFR0264 - but it has a lot more power source options and connection points, and costs 3 times the price of DFR0264 … which I think is confusing for someone only interested in solar charging

  2. We are seeing more dev boards featuring low quiescent current and LiPo connectors. However I have only found 2 which are intended to charge from solar panels - the others expect to be charged from USB, and so suitable for “portable” but not “remote” projects.

  3. Like the many other “Solar Power Managers”, BQ24074 output is boosted and regulated, so it connects to dev boards’ 5V IN pin.
    DFR0264 VOUT is unregulated parallel from battery, and so connects to the battery connector of the dev boards - i.e. it is for a different purpose.
    Using a Solar Power Manager board with a “portable” battery-powered dev board duplicates the charging circuitry and LiPo battery.

Product page: Solar Lipo Charger (3.7V) - DFRobot
image: note that actual size is 3.2cm x 3.2cm

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schematic: https://dfimg.dfrobot.com/wiki/17398/DFR0264_solar-lipo-charger-module_schematics_1.0.pdf

Thank you for your consideration.