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Recent Forum Posts

Re: Solar Panel battery charger

Charging at 50 or 100 amps...…. use a heavy duty relay to charge/stop charging. Charge for a while, switch off, check battery voltage then charge more or not.
amgen Today, 17:08

Re: Solar Panel battery charger

Mike, What are you talking about? You must be thinking about running them in a linear mode of operation. Fully saturated, the fet's he is talking about probably have an ON RESISTANCE of less than an...
Dave Today, 16:16

Re: Solar Panel battery charger

Be sure to look at the data sheet for the MOSFETs you intend to use. I learned by melting boards, THEN looking deeper into the data sheets that the amp ratings are usually only at 2 or 3 volts. By...
mpgmike Today, 14:57

Re: Solar Panel battery charger

Dwayne, Attached is a schematic of my first system whish is still in service as I type this.
Dave Yesterday, 23:30

Re: Solar Panel battery charger

Thanks for the response. . ..

I have something similar to yours. . .I have 3 arrays with anywhere between 3 and 6 panels on each array.
About 2500 watts of power. . .
I also, am on 24 volts. ...
Dwayne Yesterday, 20:35

Re: PIC16f877a ADC RESULT SHOING ON 7 SEGMENT

It looks ok, but the ADRESH register wouldn’t be any kind of BCD. It’s just a binary value.
So between ports B & D, it’s outputting the 10 bit binary value.
The 7447 could display some values that...
Art Yesterday, 15:39

Re: Solar Panel battery charger

Dwayne, Attached is a pic of my installation that I did myself. The 2 arrays in the foreground feed 2 of the Xantrex MPPT60-150 charge controllers. Each of the dual axis array's are 1600 watts. I...
Dave Yesterday, 14:36

Re: Solar Panel battery charger

I am finding out that the charge controllers are not able to handle my Panels. . .So I decided to try and make my own, or find a controller that can handle
my panels properly. . .

I have about...
Dwayne - 17th January 2019, 22:00

Re: Solar Panel battery charger

Dwayne, Normally the charging is done in 3 stages, Attached is a .PDF of the charge controller I use. I have 2 of them and run them in parallel for the 830 amp hour battery bank I have here. It is 24...
Dave - 17th January 2019, 21:04

Re: Need to drive 40 pins on variable change, is there a way to do it in elegant way?

Thanks, looks really promising, will give it try this weekend....
CuriousOne - 17th January 2019, 20:29

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