Using Bq24650

Bornfree

Prodigy 240 points

Other Parts Discussed in Thread: BQ24650

Hi there,

Can i use BQ24650 to charge 24V SLA batteries with a 12V solar panel?

Thanks

over 14 years ago

0 Tahar Allag over 14 years ago

TI__Mastermind 32370 points

The bq24650 is buck charger. So, it can not boost 12V input to charge a 24V battery.

Thanks

Tahar

0 Bornfree over 13 years ago in reply to Tahar Allag

Prodigy 240 points

Hi Tahar,

I found this application note which mentions that the BQ24650 can be used as Boost Charger. So can be used to boost supply of 12V (from a solar panel) to charge a 24V battery? How will the MPPT be implemented?

Thanks for your time

0 Tahar Allag over 13 years ago in reply to Bornfree

TI__Mastermind 32370 points

which app note?

0 Bornfree over 13 years ago in reply to Tahar Allag

Prodigy 240 points

Sorry i forgot to paste the link. Here it is

http://www.ti.com/lit/an/slyt424/slyt424.pdf

0 Tahar Allag over 13 years ago in reply to Bornfree

TI__Mastermind 32370 points

You can use it as long as you design your boost converter appropriately for these specs.

For the MPPT point, use the equation 2 from the datasheet.

Thanks!

Tahar

0 Bornfree over 13 years ago in reply to Tahar Allag

Prodigy 240 points

Hi Tahar,

Are there any circuit examples out there which i can use? The circuit in the application note is for boosting from 5v to 12V also it does not show or tell if MPPT can be used in boost mode. Amy help will be great

0 Tahar Allag over 13 years ago in reply to Bornfree

TI__Mastermind 32370 points

Hi,

No, as far as I know, we do not have anything for your spec. But, the only change is the power stage that needs to be redesigned for your spec.

Thanks!

Tahar

Power management

Power management forum

Using Bq24650