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Title: Temperature compensated photovoltaic array

Abstract

A temperature compensated photovoltaic module comprises a series of solar cells having a thermally activated switch connected in parallel with several of the cells. The photovoltaic module is adapted to charge conventional batteries having a temperature coefficient differing from the temperature coefficient of the module. The calibration temperatures of the switches are chosen whereby the colder the ambient temperature for the module, the more switches that are on and form a closed circuit to short the associated solar cells. By shorting some of the solar cells as the ambient temperature decreases, the battery being charged by the module is not excessively overcharged at lower temperatures. PV module is an integrated solution that is reliable and inexpensive. 2 figs.

Inventors:
Issue Date:
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
563661
Patent Number(s):
5,688,337
Application Number:
PAN: 8-565,428
Assignee:
Texas Instruments Inc., Dallas, TX (United States) PTO; SCA: 140909; 250903; PA: EDB-98:013787; SN: 98001896350
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 18 Nov 1997
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 25 ENERGY STORAGE; SOLAR CELL ARRAYS; BATTERY CHARGERS; ELECTRIC BATTERIES; SWITCHING CIRCUITS; TEMPERATURE DEPENDENCE; DESIGN; OPERATION

Citation Formats

Mosher, D.M. Temperature compensated photovoltaic array. United States: N. p., 1997. Web.
Mosher, D.M. Temperature compensated photovoltaic array. United States.
Mosher, D.M. Tue . "Temperature compensated photovoltaic array". United States.
@article{osti_563661,
title = {Temperature compensated photovoltaic array},
author = {Mosher, D.M.},
abstractNote = {A temperature compensated photovoltaic module comprises a series of solar cells having a thermally activated switch connected in parallel with several of the cells. The photovoltaic module is adapted to charge conventional batteries having a temperature coefficient differing from the temperature coefficient of the module. The calibration temperatures of the switches are chosen whereby the colder the ambient temperature for the module, the more switches that are on and form a closed circuit to short the associated solar cells. By shorting some of the solar cells as the ambient temperature decreases, the battery being charged by the module is not excessively overcharged at lower temperatures. PV module is an integrated solution that is reliable and inexpensive. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {11}
}