Need some help on designing af 7.2V Li-Ion charger

Status
Not open for further replies.
G

Gundersen

Newbie level 6
Joined
Mar 21, 2002
Messages
12
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
EU
Activity points
19
7.2v li-ion charger

Need som help on the subject. - I new to designing battery applications, so pointers for principles and circuit examples would be nice. Links and so on.

I'm building a portable device, and have an Atmel controller present, which I consider using for charge controller, by letting it control a FET, for pulse charging and then measuring current with a series resistor. Is this to simple, or should other things be taken into consideration.

DC-charge supply 9V@700mA

Battery 7.2V@1100mAh Li-Ion

Regards.
Gundersen
 

I attach a useful paper
 

Atmel site has an application note on smart battery charger usin AVR.
 

    V

    Points: 2
    Helpful Answer Positive Rating
Is it a board level design or CHIP level design. If chip level, I think it would be more complicated than this. Besides the sense nlock, you need regulator, comparator, etc.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…