Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Patent
1990-05-03
1991-09-03
Wong, Peter S.
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
307 48, 307 63, H02M 7537
Patent
active
050459902
ABSTRACT:
A sixteen level power supply including four voltage sources having stepped voltage values. The voltage sources are controlled by an electronic switch assembly and may be switched into series between the positive and negative output voltage terminals. The switches are controlled by a controller circuit which monitors voltage available at each voltage source in comparison to a demand signal. The controller output a digital control bit to activate each switch.
REFERENCES:
patent: 3100851 (1963-08-01), Ross et al.
patent: 4238820 (1980-12-01), Naaijer
patent: 4775923 (1988-10-01), Schmid et al.
Crown International, Inc.
Hall James D.
Wong Peter S.
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