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Title: Temperature compensated photovoltaic array

Abstract

A temperature compensated photovoltaic module (20) comprised of a series of solar cells (22) having a thermally activated switch (24) connected in parallel with several of the cells (22). The photovoltaic module (20) is adapted to charge conventional batteries having a temperature coefficient (TC) differing from the temperature coefficient (TC) of the module (20). The calibration temperatures of the switches (24) are chosen whereby the colder the ambient temperature for the module (20), the more switches that are on and form a closed circuit to short the associated solar cells (22). By shorting some of the solar cells (22) as the ambient temperature decreases, the battery being charged by the module (20) is not excessively overcharged at lower temperatures. PV module (20) is an integrated solution that is reliable and inexpensive.

Inventors:
 [1]
  1. (Plano, TX)
Publication Date:
OSTI Identifier:
871234
Patent Number(s):
US 5688337
Application Number:
08/565,428
Assignee:
Texas Instruments Incorporated (Dallas, TX) OSTI
DOE Contract Number:  
ZAI-4-11294-04
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
temperature; compensated; photovoltaic; array; module; 20; comprised; series; solar; cells; 22; thermally; activated; switch; 24; connected; parallel; adapted; charge; conventional; batteries; coefficient; tc; differing; calibration; temperatures; switches; chosen; whereby; colder; ambient; form; closed; circuit; associated; shorting; decreases; battery; charged; excessively; overcharged; pv; integrated; solution; reliable; inexpensive; thermally activated; temperature coefficient; photovoltaic module; solar cell; solar cells; ambient temperature; closed circuit; photovoltaic array; temperature compensated; compensated photovoltaic; pv module; activated switch; /136/320/

Citation Formats

Mosher, Dan Michael. Temperature compensated photovoltaic array. United States: N. p., 1997. Web.
Mosher, Dan Michael. Temperature compensated photovoltaic array. United States.
Mosher, Dan Michael. Tue . "Temperature compensated photovoltaic array". United States. doi:. https://www.osti.gov/servlets/purl/871234.
@article{osti_871234,
title = {Temperature compensated photovoltaic array},
author = {Mosher, Dan Michael},
abstractNote = {A temperature compensated photovoltaic module (20) comprised of a series of solar cells (22) having a thermally activated switch (24) connected in parallel with several of the cells (22). The photovoltaic module (20) is adapted to charge conventional batteries having a temperature coefficient (TC) differing from the temperature coefficient (TC) of the module (20). The calibration temperatures of the switches (24) are chosen whereby the colder the ambient temperature for the module (20), the more switches that are on and form a closed circuit to short the associated solar cells (22). By shorting some of the solar cells (22) as the ambient temperature decreases, the battery being charged by the module (20) is not excessively overcharged at lower temperatures. PV module (20) is an integrated solution that is reliable and inexpensive.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 18 00:00:00 EST 1997},
month = {Tue Nov 18 00:00:00 EST 1997}
}

Patent:

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