DC-DC converter

Details DC-DC converter DC-DC converter

2011-08-30

2011-08-30

Nguyen, Matthew (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S283000

Reexamination Certificate

active

08008900

ABSTRACT:
A DC-DC converter providing a DC output voltage at an output node. The DC-DC converter comprises an output stage, a digital controller, and a controller. The output stage comprises a pull-up circuit having a control terminal and coupled between a first fixed voltage and a internal node, a pull-down circuit coupled between the internal node and a second fixed voltage, and a low pass filter coupled between the internal node and the output node. The digital controller is powered by the DC output voltage and adjusts the DC output voltage by controlling the output stage. The controller controls a connection of a feedback path, comprising the digital controller, between the output node and the control terminal according to the DC output voltage.

REFERENCES:
patent: 5943227 (1999-08-01), Bryson et al.
patent: 6833691 (2004-12-01), Chapuis
patent: 6842353 (2005-01-01), Yamada et al.
patent: 7119525 (2006-10-01), Yoshino
patent: 7167054 (2007-01-01), Dening et al.
patent: 2006/0091871 (2006-05-01), Abedinpour et al.
patent: 2011/0018513 (2011-01-01), Noda

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