Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Patent
1986-06-16
1988-01-05
Wong, Peter S.
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
363131, 363109, H02M 748
Patent
active
047179953
ABSTRACT:
A procedure for converting direct electrical energy into alternating electrical energy is disclosed. An apparatus sequentially sweeps the connecting points of a number of DC power supplies in order to provide an alternating current wave form. The sequential sweep of each consecutive connection point is carried out such that the second connection is initiated prior to disconnecting the first connection. Overlapping connections are not, however, used where there is a reversal of the direction of the current at the output terminals. The speed of the sweep may be varied in accordance with the specific frequency required for the alternating current wave form.
REFERENCES:
patent: 1703242 (1929-02-01), Kukel
patent: 1859940 (1932-05-01), Spaeth
patent: 2192553 (1940-03-01), Lindblom
patent: 3205427 (1965-09-01), Maier
patent: 3697852 (1972-10-01), Gerbitz
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