Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Firstly, i want to salute all members of this forum
i am trying to design Car Battery Charger , and i want some information
how much ampere to charge for fast charge and for slow charge , if you have circuit diagram .
i need you help pleaseeeeeeeee.
Look back thru posts for a question about charging "calcium" batteries. I responded there a month or so ago with the url (I forgot what it is) for a good technical description of how to charge a lead-acid battery for best life and performance. I recall that the best charge rate when the battery was discharged was something like 2 amps - but best to read thru it so you can decide what's best for your application.
i need a charged circiut diagram supply 12 volt (battery car) and current of 15 A As batteries have 70 ,50 or 90 A
do you have it
i have a circiut diagram for 3 A only send in the attachment
You may get a charger ckt from National Semiconductor Data sheet for LM350. I build this ckt and now it is up & running. Also you get a battery overflow indicator therein. If you go through that ckt, you will note that there is no mechanism to prevent BATT being discharging into the IC when ther is a mains power failer. So what I did was, I put a doide (IN5408) to stop this. However, with this alternative, there is a little voltage drop but negligible.