Breaking News
Comments
Newest First | Oldest First | Threaded View
ZekeR
User Rank
Rookie
re: Combined voltage, current control loops simplify solar apps
ZekeR   11/27/2012 11:24:58 PM
NO RATINGS
@Semiman_#1: True. If you wanted to achieve temperature-invariant MPPT with this chip, it looks like you'd have to detach Vs and CSN from INTVCC, and re-attach the pins to an external temperature-sensing diode. You'd need to tweak the resistor values accordingly. I haven't shopped around, but it would seem reasonable for solar panel makers to include a temperature-sensing diode in the center of the panel; the panel's MPPT should track the diode's open-circuit voltage fairly well. If that's not the case, then you can always glue a diode to the panel and drive it with a current source (resistor to INTVCC).

Jack.L
User Rank
CEO
re: Combined voltage, current control loops simplify solar apps
Jack.L   11/25/2012 3:16:57 AM
NO RATINGS
It's a somewhat simplistic view of maximum power point tracking and would apply to one panel, at one temperature. It would not achieve anywhere near 100% utilization in the real world as the maximum power point voltage will vary considerably with temperature ... which is impacted by solar irradiance as well.

agk
User Rank
Rookie
re: Combined voltage, current control loops simplify solar apps
agk   11/20/2012 12:05:42 PM
NO RATINGS
This chip has multiple features tied together and designers of UPS,inverters also can benefit. If this chip could be combined with a digital technology with a simple user interface to program various parameters of currents and voltages then it will be more easy to incorporate into many systems.



Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
Post a comment
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
5 comments
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...

Max Maxfield

Feast Your Orbs on My Jiggly Exercise Machine
Max Maxfield
54 comments
Last weekend, I was chatting with my mother on the phone. She's all excited that I'm coming over to visit for a week in November. "I'll be seeing you in only seven weeks," she trilled ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
47 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...