High-voltage converter circuit

Details High-voltage converter circuit High-voltage converter circuit

1978-09-21

1980-05-13

Miller, J. D.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363132, H02M 7537

Patent

active

042031516

ABSTRACT:
An inverter circuit includes a DC voltage supply having a plurality of voltage taps coupled via (1) a first plurality of diodes for unidirectional current flow therefrom to successive common connections between the upper half of a plurality of first transistors connected in cascade across the voltage supply, (2) a second plurality of diodes for unidirectional current flow therefrom to successive common connections between the upper half of a plurality of capacitors, of like number to the first transistors, connected in series and across the DC voltage supply via a pair of diodes providing unidirectional current between the voltage supply and capacitors, (3) a third plurality of diodes for unidirectional current flow thereto from successive common connections between the lower half of the plurality of first transistors, (4) a fourth plurality of diodes for unidirectional current flow thereto from the successive common connections between the lower half of the plurality of capacitors; and a plurality of second transistors connected in cascade across the series string of capacitors, their centralmost common connection being connected to an output terminal, individual ones of a fifth plurality of diodes being connected between successive common connections of the capacitors to and for unidirectional current flow (1) therefrom to the successive common connections between the upper half of, and (2) thereto from the successive common connections between the lower half, of the second transistors, the pluralities of first and second transistors being operable to different combinations of their conductive and nonconductive states for predetermined periods of time for producing a multitiered AC waveform at the output terminal.

REFERENCES:
patent: 3052833 (1962-09-01), Coolidge et al.
patent: 3100851 (1963-08-01), Ross et al.
patent: 3227889 (1966-01-01), Paynter
patent: 3371232 (1968-02-01), Hannan et al.
patent: 3553479 (1971-01-01), Nelson
patent: 3800166 (1974-03-01), Keiner
patent: 4135235 (1979-01-01), Baker
patent: 4137570 (1979-01-01), Baker

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