Amplifiers – With semiconductor amplifying device – Including particular power supply circuitry
Reexamination Certificate
2008-05-13
2008-05-13
Nguyen, Patricia (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including particular power supply circuitry
C330S267000, C330S251000, C330S20700P
Reexamination Certificate
active
07372333
ABSTRACT:
Embodiments of RF power amplifiers are disclosed that include switched-mode power amplifiers supplied by synchronous buck DC-DC converters. The switched-mode power amplifiers can be used to amplify a limited form of an RF input signal and the supply to the switched-mode power amplifier is varied in response to the envelope of the RF input signal. One embodiment includes a switched-mode power amplifier connected to a synchronous buck DC-DC converter.
REFERENCES:
patent: 6138042 (2000-10-01), Midya et al.
patent: 6300826 (2001-10-01), Mathe et al.
patent: 6492867 (2002-12-01), Bar-David
patent: 6583664 (2003-06-01), Mathe et al.
patent: 6781452 (2004-08-01), Cioffi et al.
patent: 6791298 (2004-09-01), Shenai et al.
patent: 6813319 (2004-11-01), Nagle et al.
patent: 7026797 (2006-04-01), McCune, Jr.
patent: 2003/0090237 (2003-05-01), Shenai et al.
patent: 2003/0090244 (2003-05-01), Shenai et al.
patent: 2003/0090245 (2003-05-01), Shenai et al.
patent: 2003/0090246 (2003-05-01), Shenai et al.
patent: 2006/0091871 (2006-05-01), Abedinpour et al.
patent: WO 01/97479 (2001-12-01), None
patent: WO 03/041238 (2003-05-01), None
patent: WO 03/041250 (2003-05-01), None
patent: WO 03/041252 (2003-05-01), None
patent: WO 03/100831 (2003-12-01), None
Abedinpour S. et al., “DC-DC power converter for monolithic implementation,” IEEE Industry Applications Conference (IAS), 2000, pp. 2471-2475.
Abedinpour S. et al., Integrated ZVS synchronous buck DC-DC converter with adaptive control for improved ZVS performance. www.azte.com/documents/wireless/m2-086.abedinpour.pdf printed Apr. 30, 2007.
Rincon-Mora GA et al., “Optimized frequency-shaping circuit topologies for LDO's,” IEEE Trans. Circuits and Systems II: Analog and Digital Signal Processing, 45(6) 1998.
Maksimovic D et al., Proc. “Switched-capacitor DC-DC converters for low-power on-chip applications,” IEEE Power Electronics Specialists Conference (PESC), 1999, pp. 54-59.
Lau W et al., Proc. “An integrated controller for a high frequency buck converter,” IEEE Power Electronics Specialists Conference (PESC), 1997, pp. 246-254.
Stratakos A et al., Proc. “A low-voltage CMOS DC-DC converter for a portable battery operated system,” IEEE Power Electronics Specialists Conference (PESC), 1994, pp. 619-626.
Acker B et al., Proc. “Synchronous rectification with adaptive timing control,” IEEE Power Electronics Specialists Conference (PESC), 1995, pp. 88-95.
International Search Report for International Application No. PCT/US2004/003161 dated Jul. 21, 2004 (mailed Oct. 14, 2004) (4 pgs.).
Written Opinion of the International Searching Authority for International Application No. PCT/US2004/003161 mailed Oct. 14, 2004 (3 pgs.).
International Preliminary Examination Report on Patentability for International Application No. PCT/US2004/003161 dated Dec. 16, 2004 (4 pgs.).
Abedinpour Siamak
Kiaei Sayfe
Arizona Board of Regents, acting for and on behalf of Arizona St
McDonnell Boehnen & Hulbert & Berghoff LLP
Nguyen Patricia
LandOfFree
Monolithic supply-modulated RF power amplifier and DC-DC... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Monolithic supply-modulated RF power amplifier and DC-DC..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monolithic supply-modulated RF power amplifier and DC-DC... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2799447