Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

High Power Energy Harvesting Circuits

Status
Not open for further replies.

rahdirs

Advanced Member level 1
Joined
May 22, 2013
Messages
424
Helped
93
Reputation
192
Reaction score
91
Trophy points
1,308
Location
Mordor
Activity points
4,496
Hi all,

I am trying to find a circuit that provides energy harvesting for high power applications.The voltages would be in the range of 10-12 V and currents in the range of 12-15 A.

The IC LT 3652 allows harvesting for voltages upto 32 V but provides an output current of only 2 A.Are there any circuits that bring out 10 A ???
Below is an attached image from data-sheet of LT 3652,if the IC cannot charge battery when Solar voltage drops below 12 V,why is it called an Energy Harvesting Circuit.

Capture.JPG
 
Last edited:

rahdirs

Advanced Member level 1
Joined
May 22, 2013
Messages
424
Helped
93
Reputation
192
Reaction score
91
Trophy points
1,308
Location
Mordor
Activity points
4,496
@chuckey: Yes,it has many options for monitoring battery voltage,charging current etc....it definitely manages power,but it was included among Energy Harvesting chips in Linear Technology website.
Are,there any other chips that do Energy Harvesting at High Power
 

Attachments

  • Capture.JPG
    Capture.JPG
    130.1 KB · Views: 23

FvM

Super Moderator
Staff member
Joined
Jan 22, 2008
Messages
49,125
Helped
14,379
Reputation
29,022
Reaction score
13,132
Trophy points
1,393
Location
Bochum, Germany
Activity points
283,183
Not everything in power electronics can (or must) be done with a single IC.
 

amitjagtap

Full Member level 5
Joined
Jan 10, 2007
Messages
304
Helped
42
Reputation
84
Reaction score
36
Trophy points
1,308
Activity points
3,273
You are using LT 3652 which gives 2A output current..... You want more output current.....
so..you can use multiple ICs in parallel to get 10-12 Amps....Put 5 such ICs in parallel to get 10A of current...(2Ax5=10A)...
For this...Check following application note form LT...
 

Attachments

  • LTMag-V17N04-01-LTM4601-AChern.pdf
    1.1 MB · Views: 17

rahdirs

Advanced Member level 1
Joined
May 22, 2013
Messages
424
Helped
93
Reputation
192
Reaction score
91
Trophy points
1,308
Location
Mordor
Activity points
4,496
@FvM: can suggest some way to do high power energy harvesting or for a way to charge a 12 v battery when panel voltage drops below 12 v
 

FvM

Super Moderator
Staff member
Joined
Jan 22, 2008
Messages
49,125
Helped
14,379
Reputation
29,022
Reaction score
13,132
Trophy points
1,393
Location
Bochum, Germany
Activity points
283,183
You might consider a boost respectively a buck-boost converter. But depending on the solar panel characteristic, it's possibly useless. The operation point of a solar charger would be controller by MPPT. If the solar panel voltage is selected for buck operation with higher intensity, the output currents for voltages below 14 V is most likely so low, that you can stop charging without losing much energy.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top