Voltage control device for increasing or decreasing voltage to a

Details Voltage control device for increasing or decreasing voltage to a Voltage control device for increasing or decreasing voltage to a

1999-03-24

2000-08-08

Berhane, Adolf Deneke

Electricity: power supply or regulation systems

Output level responsive

Using a transformer or inductor as the final control device

323340, G05F 114

Patent

active

061006734

ABSTRACT:
A voltage control apparatus (10) selectively boosts or bucks an input voltage in order to provide a selected output voltage. In the preferred embodiment, the apparatus includes a transformer (T1) having a plurality of secondary voltages presented at respective output connections (A-E), a connection circuit (12) having actuatable connection elements (R1-R6) to interconnect selected ones of the output connections, and a control circuit (14) operable to sense the input voltage at the primary of the transformer (T1) and to activate selected ones of the connection elements to produce a selected output voltage for delivery to a load. The preferred connection elements include electro-mechanical relays.

REFERENCES:
patent: 4178539 (1979-12-01), Crapo
patent: 4716357 (1987-12-01), Cooper
patent: 5155672 (1992-10-01), Brown
patent: 5550459 (1996-08-01), Laplace
patent: 5712554 (1998-01-01), Lace
patent: 5808454 (1998-09-01), Chung
patent: 5821739 (1998-10-01), Imoto
patent: 5825164 (1998-10-01), Williams

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