Methods and systems having multiple cooperating transformers

Details Methods and systems having multiple cooperating transformers Methods and systems having multiple cooperating transformers

2006-09-05

2006-09-05

Nguyen, Matthew V. (Department: 2838)

Electricity: power supply or regulation systems

Including a transformer or an inductor

Polyphase or plural transformers

C363S171000

Reexamination Certificate

active

07102343

ABSTRACT:
Disclosed are methods, systems, and devices that include a power source having a first voltage having a first frequency, a power-consuming load(s), and a first transformer set comprising a delta-delta transformer and a first voltage controller coupled in series thereto, an input coupled to the power source, producing as output a second voltage having a second frequency and coupled to the power-consuming load(s). Also, a second transformer set has a wye-delta transformer, and a second voltage controller coupled in series thereto, an input is coupled to the power source, producing a phase-shifted third voltage output at a third frequency that is coupled to the power-consuming load(s). The first and second transformer sets are coupled in a parallel configuration such that the second and third voltage signals combine to produce a fourth voltage signal having a fourth frequency.

REFERENCES:
patent: 5138544 (1992-08-01), Jessee
patent: 5495403 (1996-02-01), Dhyanchand et al.
patent: 5835364 (1998-11-01), DeWinter et al.
patent: 5905367 (1999-05-01), Hochgraf
patent: 6566895 (2003-05-01), Estrela et al.
patent: 2003/0078742 (2003-04-01), VanderZee et al.

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