AUTOMATIC ADJUSTMENT OF LIGHT RECEIVING ANGLE OF SOLAR CELL

• Main Author: WATANABE KO
• Format: Patent
• Language: English
• Published: 27.04.1990
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SEMICONDUCTOR DEVICES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

PURPOSE:To control the surface of optical detector of a solar cell such that it is directed to the southing altitude of the sun by driving a servomotor in response to the average temperature averaged by an integrator circuit which takes about one week as a time constant. CONSTITUTION:A temperature sensor 1 is set at a position where no wind is existent without being influenced by artificial heats for detecting the temperature that is changed from time to time and feeding resulting temperature information to an integrated circuit 2. The integrated circuit that has an about one week time constant accumulates the temperature information from the sensor 1 and evaluates the mean temperature of one week. Hereby, a servomotor 3 is driven and is controlled such that the surface of a solar cell 4 is directed to the southing attitude of the sun. The motor 3 is previously adjusted such that the detector surface of the cell 4 is directed to the southing attitude in summer and winter at the maximum and minimum average temperature for every year.