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I saw the PCB, it is different model. LM339 and LM324 are quad OPAMPS with little difference in design. This beep seems to be indicationg battery over charge alarm (a false one) and leads to a bad LM324. If visually no indication of any damage, I can suggest only (without physically examining)...
No confusion to me, we here on the forum always take the postings as the Asked Question. If it was just a joke better to avoid, please, to help others to go go smooth.
Hi
Here are two site references for you to get started and learn:
https://www.w3schools.com/html/html_basic.asp
https://www.htmlquick.com/
Hope it help you to take start.
2.5K resistor color will be Red-Green-Red. LM338 is an electronic voltage regulator and you have to put it, means screw it with a piece of Aluminium, bit big one for cooling the regulator. It will getting charge (according to circuit) and will feed also same time to the Router when the AC mains...
This is a regulated voltage and constant current power supply as per the specification of the product. And as per the Product weight specified it seems to be containing a Transformer inside and not a Switching PS.
If any special need for discharging needed, in the market there are ready available DISCHARGERS. Or here are some design circuit if you can prepare yourself...
You did not specify the project. Without knowing the project details it is not possible to give out any cost idea. As the components number will increase the cost will increase and if any proto type board is required the cost will high in a quick.
What application is it, specify clearly.
Re: overvoltaging a relay
You can use the relay to any current less than rated contact, but if the contact voltage is increased the FLASH on the contact while it is breaking will increase (specially on Inductive loads) hence damaging the contact more rapidly as specified in the manufacturer's...
As I said earlier in my post #8, this is very clearly explained in the referred site address in post #15.
Explained in a very very elaborated way. For real understanding has to go through whole article reading carefully.
Perfect " An electric charge is not stored in capacitor but an Electrical...
There is a bit difference in VA and WATTS.
" In AC, the product of current and voltage is called the apparent power of a load, and is measured in volt amperes (VA). The watt is the unit of true power which is the product of current, voltage, and power factor of a load ". In resistive loads the...
Re: how to use pc power supply to charge 40A Batter ?
@tpetar
Yes you are right.
You are right on your meanings but in the area he is from I know the general people or market language.
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