By Julian
Youtuber, shed dweller, solar charge controller aficionado
Good morning all…
Youtuber, shed dweller, solar charge controller aficionado
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If the PWM runs at 250Hz, instead of the 121Hz your PWM5 uses, it will degrade the quality of the charging process?
Probably beyond the scope, but a circuit focused on recovering/desufanating the "dead" lead-acid batteries would be interesting.
Wonderful – I'd like to know how you've hooked the oscilloscope; scope negative is hooked in negative of solar controller, where is the other one hooked? is it hooked with the transistor (looks like a transistor) or in some pin of the chip?
'lets plug in some sun' WOW he's developed a PIC powered SUN! using only assembly language, and premium-quality connectors…available from a skip near you 80) shudda put a polyfuse on that PCB.
anyone can help me to to understand how i can change duty cycle with feedback coming from battery?
my solar + and battery + are common where as n channal mosfets switch solar ground to battery + load ground.
currently i have fixed duty cycle value which is not working good because when i put load voltage get dropped
I stopped buying from Maplin when they tried to charge me three times the going rate for a wi-fi dongle. Before then, they had been over-priced (but convenient, if you had a branch in town) for a number of years. On that last occasion, they were simply taking the mickey. And the staff hadn't a clue about Linux. They had to look it up, make two lengthy phone calls, and then try to bluff their way out of the situation. And then there were the mailshots which kept arriving at our house for several years afterwards. The MPS had to be contacted to make them stop. They spent much more on advertising than their initial profit. So, a poignant 'good riddance' to a once-excellent business.
Where did you get the tantalum capacitors?
Hi Julian. Great videos. Sorry for being pedantic but I have a collection of lead acid batteries and on a couple of them it states on them to keep them upright. I'm not sure about the gel ones.
Open the connector so we can see the wires inside! 🙂
those connectors have one strand of very thin wire inside, cut one open and take a look.
even better do a video on it
How much additional cost would a precision 5v regulator add to the BOM?
What is the max solar input voltage
Since the connector saved you, why not include a proper fuse in PWM6?
the reason the transformer is not delivering enough power is because the 500mA rating is where the voltage will settle at that current, so it simply doesnt supply 500mA at 13.5v.
always a pleasure to watch your videos