The Godfather talking
You think I am funny guy huh?
Sonsivri
 
*
Welcome, Guest. Please login or register.
Did you miss your activation email?
December 08, 2016, 10:46:25 10:46


Login with username, password and session length


Pages: [1]
Print
Author Topic: Request: Laptop battery charger  (Read 1400 times)
0 Members and 1 Guest are viewing this topic.
nileshhande
Junior Member
**
Offline Offline

Posts: 70

Thank You
-Given: 22
-Receive: 5


« on: July 27, 2008, 11:03:40 11:03 »

Hi all. Looking for laptop battery charger for RC-project(long backup)
Thanks&Regards.
Logged
Walkura
Active Member
***
Offline Offline

Posts: 123

Thank You
-Given: 55
-Receive: 82


« Reply #1 on: July 27, 2008, 09:48:02 21:48 »

In the elektor of january 2006 they published a laptop charger .
Unfortunatly the file i have of that turns out to be corrupted .
I hope this will get you a bit closer .

Have a nice eve Walkura
Logged
pickit2
Moderator
Hero Member
*****
Offline Offline

Posts: 3816

Thank You
-Given: 567
-Receive: 2049


There is no evidence that I muted SoNsIvRi


« Reply #2 on: July 27, 2008, 10:14:28 22:14 »

for information only The power supply you get with a laptop is only a power supply. @19V common type.
the battery charging and monitoring is controlled via the laptop.
Logged

Note: If you have no posts other than, I want or reporting a dead link Then you can't complain If I remove your post So Stop Leeching
micropar
Active Member
***
Offline Offline

Posts: 173

Thank You
-Given: 44
-Receive: 13


« Reply #3 on: July 28, 2008, 02:39:08 02:39 »

Hi all,

Visit any SMPS chips mfg such as Power Integration, ST micro, NXP, On-Semi , Fairchild and you find lot of Laptop charger circuits with SMPS.

Regards,
--micropar--
Logged
nileshhande
Junior Member
**
Offline Offline

Posts: 70

Thank You
-Given: 22
-Receive: 5


« Reply #4 on: July 28, 2008, 09:15:07 09:15 »


Hi, Exactly thats what i looking for.. how to monitor and charge through a 19volt adapter.Also I'm searching for elektor of january 2006(Walkur's reply).is this a individual charger?
Thanks and Regards.
Logged
Walkura
Active Member
***
Offline Offline

Posts: 123

Thank You
-Given: 55
-Receive: 82


« Reply #5 on: July 28, 2008, 10:56:48 10:56 »

The elektor schematic concerns a 19 Volt powersupply (switchmode)
When it comes to charging and monitoring the charge process i need some more information .
A : how much cells
B : what chemistry of cells .
C : size of the cell's in Ah .
Logged
nileshhande
Junior Member
**
Offline Offline

Posts: 70

Thank You
-Given: 22
-Receive: 5


« Reply #6 on: July 28, 2008, 01:19:29 13:19 »

@Walkura
A : how much cells
B : what chemistry of cells .
C : size of the cell's in Ah .
Hi, A:Planning to use 2-3 battery's. B: LI-iON. C: 14.4V, 4400mAh. Thanks
Logged
Walkura
Active Member
***
Offline Offline

Posts: 123

Thank You
-Given: 55
-Receive: 82


« Reply #7 on: July 28, 2008, 09:21:36 21:21 »

Good evening nileshhande.

I think you would come to something like this then .
http://focus.ti.com.cn/cn/lit/an/slua097/slua097.pdf
There are dozens of chips to build smps's and lithium ion chargers .
But let me add a few points .
Building a switchmode powersupply is in itself very well possible when you have the acces to an ossciloscope etc.
The power doesnt have to be high for this half a Ampere would do so topswitch ,Fairchild fps anything will do .
(although i would prefer to build forward instead if flyback cause it saves the trouble of gapped cores)

About the charging part there it really doesnt matter which chipset you choose .
For me the criterium would be if its dil sockets .
It can be the TI from the datasheet or some other chip like it.
http://focus.ti.com/lit/ds/symlink/bq2954.pdf
I know Microchip has them too like the 16HV785.

Good luck Smiley
( and be carefull with mains power  Grin )
Logged
sava
Junior Member
**
 Muted
Offline Offline

Posts: 35

Thank You
-Given: 1376
-Receive: 56


« Reply #8 on: July 28, 2008, 10:39:24 22:39 »

http://rapidshare.com/files/133159584/Elektor_01__2006.pdf.html
Logged
Pages: [1]
Print
Jump to:  


DISCLAIMER
WE DONT HOST ANY ILLEGAL FILES ON THE SERVER
USE CONTACT US TO REPORT ILLEGAL FILES
ADMINISTRATORS CANNOT BE HELD RESPONSIBLE FOR USERS POSTS AND LINKS

... Copyright 2003-2999 Sonsivri.to ...
Powered by SMF 1.1.18 | SMF © 2006-2009, Simple Machines LLC | HarzeM Dilber MC