Multiphase DC-DC converter

Details Multiphase DC-DC converter Multiphase DC-DC converter

2007-01-09

2007-01-09

Vu, Bao Q. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S272000, C323S284000

Reexamination Certificate

active

11145232

ABSTRACT:
A multiphase DC-DC converter that equalizes the output current of a plurality of converter units while improving responsiveness with respect to sudden changes in the output voltage. The converter includes a control unit for controlling the converter units. The control unit includes a comparator for comparing the output voltage of each of the converter units with a reference voltage, a first control circuit for sequentially selecting each of the converter units in accordance with an output signal of the comparator to activate the output transistor of the selected converter unit, and a second control circuit for controlling the inactivation timing of the output transistors of the converter units so as to equalize the output current of the converter units.

REFERENCES:
patent: 4729086 (1988-03-01), Lethellier
patent: 6144194 (2000-11-01), Varga
patent: 6424129 (2002-07-01), Lethellier
patent: 6788036 (2004-09-01), Milavec et al.
patent: 6940261 (2005-09-01), Umminger
patent: 2002-078321 (2002-03-01), None

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