1975-03-10
1976-05-18
Goldberg, Gerald
H02M 112
Patent
active
039581713
ABSTRACT:
An inverter controlling device for eliminating higher harmonic components of lower ordinals from output voltage of the inverter is provided. The inverter is controlled such that each half cycle of a basic wave is divided into an even number of sections respectively having an equal phase interval, a pulse voltage is produced at the center of each of said sections so that the pulse width of the respective pulses in each said half cycle will be wider as they approach the center of the half cycle than that of the pulses at both ends with a predetermined ratio, and a plurality of pulse voltages similar to a pulse train of said pulse voltages is produced as an inverter output.
REFERENCES:
patent: 3523236 (1970-04-01), Howell et al.
patent: 3605005 (1971-09-01), Stolzy
patent: 3614590 (1971-10-01), Kernick
patent: 3649902 (1972-03-01), Dunbar
patent: 3916285 (1975-10-01), Iwata
S13210035 Proceedings of the 4 Intersociety Energy Conversion Engnr. Confr., Sept. 1969, pp. 854-860.
Electronic Design "Which DC/AC Inverter?" by G. A. O'Sullivan, Dec. 6, 1974, pp. 54-59,
Principles of Inverter Ckts., Dec. 1964, by Bedford & Holt, pp. 310-313,
Goldberg Gerald
Nippon Telegraph and Telephone Public Corporation
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