Method for changing an output voltage and circuit therefor

Details Method for changing an output voltage and circuit therefor Method for changing an output voltage and circuit therefor

2008-12-17

2011-11-01

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

Reexamination Certificate

active

08049476

ABSTRACT:
A power supply and a method for compensating for a droop component in an output signal of the power supply. The power supply may include an error amplifier and an oscillator coupled to a pulse width modulation circuit. Outputs of the pulse width modulation circuit are connected to switching circuits that have outputs coupled to an output node. The power supply further includes a droop compensation circuit connected to the output of the power supply, the outputs of the switching circuits, and to an input of the error amplifier. The droop compensation circuit includes an amplifier coupled to a feed-forward network and a current source coupled to the feed-forward network. The current source sources a current to or sinks a current from the feed-forward network to generate a droop compensation signal that is transmitted to the error amplifier. The current source may be controlled by a digital-to-analog circuit.

REFERENCES:
patent: 4791348 (1988-12-01), McGuire et al.
patent: 5530399 (1996-06-01), Chambers et al.
patent: 5990751 (1999-11-01), Takita
patent: 6121761 (2000-09-01), Herbert
patent: 6531853 (2003-03-01), Umemoto
patent: 6680604 (2004-01-01), Muratov et al.
patent: 6798180 (2004-09-01), Sase et al.
patent: 6850398 (2005-02-01), Ciancio
patent: 6879137 (2005-04-01), Sase et al.
patent: 7084613 (2006-08-01), Harris et al.
patent: 7091705 (2006-08-01), Hoshino et al.
patent: 7202646 (2007-04-01), Vinciarelli
patent: 7221129 (2007-05-01), Matsuo et al.
patent: 7304462 (2007-12-01), Shvarts
patent: 7489119 (2009-02-01), Smith et al.
patent: 7724077 (2010-05-01), Bien
patent: 7852053 (2010-12-01), Martin et al.
patent: 7937563 (2011-05-01), Naffziger et al.
patent: 7954000 (2011-05-01), Allen et al.
patent: 7956590 (2011-06-01), Zafarana et al.
patent: 7960956 (2011-06-01), Zafarana
patent: 2005/0127881 (2005-06-01), Sase et al.
patent: 2009/0015217 (2009-01-01), Harriman
patent: 2010/0085098 (2010-04-01), Ferguson

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