Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent
1994-11-22
1997-05-06
Wong, Peter S.
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
363 89, G05F 110, G05F 1656, H02M 542, H02M 768
Patent
active
056274556
ABSTRACT:
A split boost converter is disclosed herein, suitable for both single phase and three phase AC input applications. It provides two equal but unparallelable output voltages stored on two separate independent output capacitors. The implementation supports two modes of operation in which two power switches are operated simultaneously or alternately. Each mode maintains the advantage of a reduced boost inductor size. In the first mode the charging of the capacitors in parallel circuits and their discharge in a series connection substantially reduces ripple current in the inductor permitting the user of a smaller inductor. In the second mode the capacitors are charged and discharged in differing time intervals achieving a similar result. The circuit is operable with input voltages which must exceed the voltages of its two output capacitors.
REFERENCES:
patent: 5072355 (1991-12-01), Huillet
patent: 5122724 (1992-06-01), Criss
patent: 5155430 (1992-10-01), Gulcznski
patent: 5319533 (1994-06-01), Reynolds et al.
patent: 5345376 (1994-09-01), Nourbaksh
Farrington Richard W.
Jacobs Mark E.
Lucent Technologies - Inc.
Vu Bao Q.
Wong Peter S.
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