Go Down

Topic: Charge Controller LT3652 (Read 440 times) previous topic - next topic


Jan 30, 2015, 11:32 pm Last Edit: Apr 06, 2015, 07:20 am by ron_sutherland
Power Tracking 1500 - 2500 mA Solar Panel Powered 3-Stage 6V Lead-Acid Fast/Float Charger.

Project Board Page: http://epccs.org/indexes/Board/CC01/

Electrical Schematic:

Board Design:


Mar 01, 2015, 08:29 am Last Edit: Mar 02, 2015, 10:06 pm by ron_sutherland
Long story short, I debugged and debugged... then finally got it to work (with some room for improvement).

point of interest:
problem with ICM7555 one shot controlled by TLVH431 reference,

I used 30AWG wire for this fly wire rats nest and liked it.

The list of changes that I need to spin into an updated board.

The new schematic and board, linked from the top post, is for 15016^1 board. I have also added a switch (not on redline) that will allow attaching the battery in the dark without having it disconnect.


Got rev 1 boards and removed parts from original rev 0 board to place them on the new ^1 board (are my really that cheap, guess so). So far, testing looks good but I never checked the Ideal-Diode circuit, and now I know it is worthless above about 6V due to the emitter-base breakdown voltage, anyway removing Q2 and R5 got me going. This video helped me:

I have updates and some short videos of testing and debugging on circuit board page (see post #1), but now it is time to get a few PV array and batteries.
15016^1A Schematic RDLN.pdf


Rev ^1 has hiccup at sunrise when battery was disconnected, onward to rev ^2

Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131