Temperature compensated photovoltaic array

Details Temperature compensated photovoltaic array Temperature compensated photovoltaic array

1995-11-30

1997-11-18

Weisstuch, Aaron

Batteries: thermoelectric and photoelectric

Photoelectric

Panel or array

136293, 320 2, 320 35, 320 36, H01L 31042, H01L 3105

Patent

active

056883374

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.

REFERENCES:
patent: 4806495 (1989-02-01), Levine et al.
patent: 4872607 (1989-10-01), Jensen et al.
patent: 4917752 (1990-04-01), Jensen et al.
patent: 4957601 (1990-09-01), Levine et al.
patent: 4992138 (1991-02-01), Jensen et al.

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