Electric power conversion systems – Current conversion – With voltage multiplication means
Patent
1990-03-02
1991-04-16
Wong, Peter S.
Electric power conversion systems
Current conversion
With voltage multiplication means
363 68, 363126, 363144, H02M 725
Patent
active
050088009
ABSTRACT:
A high voltage multistage cascade rectifier power supply is provided which maintains uniform potential between the stages of the rectifier, and thus uniformly grades the electric potential, by providing equipotential conductor plates on each side of each stage of the power supply. The plates include both AC and DC plates, with capacitors being provided between each pair of plates defining a stage. Discrete capacitors may be provided between each pair of plates or the plates may form part of the capacitors with dielectric material being provided between the plates. The plates are selectively interconnected by diodes to form the cascade rectifier. Stray capacitance in the cascade rectifier is compensated for with an inductor across the input to the rectifier, which inductor is selected to tune out the stray capacitance. The frequency of the input drive may be automatically adjusted to compensate for changes in the system, including changes in stray capacitance.
REFERENCES:
patent: 3629631 (1971-12-01), Cotton et al.
patent: 3812390 (1974-05-01), Richards
patent: 3927338 (1975-12-01), Vieilleribiere
patent: 4338657 (1982-07-01), Lisin et al.
patent: 4389703 (1983-06-01), Morel et al.
patent: 4393441 (1983-07-01), Enge
Science Research Laboratory, Inc.
Wong Peter S.
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