Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2011-01-11
2011-01-11
Vu, Bao Q (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S322000
Reexamination Certificate
active
07868601
ABSTRACT:
A system and method are disclosed for controlling a regulator circuit that outputs a plurality of radio frequency power amplifier bias voltages. A feedback loop is connected to the regulator circuit from the plurality of bias voltages that are output from the regulator circuit. The feedback loop comprises a demultiplexer circuit and a multiplexer circuit that are connected to the regulator circuit. The demultiplexer circuit and the multiplexer circuit each receive an enable signal and provide a feedback signal to the regulator circuit from the bias voltage that is associated with the received enable signal. The invention allows the regulator circuit to be configured as needed to provide different values of radio frequency power amplifier bias voltages.
REFERENCES:
patent: 6031362 (2000-02-01), Bradley
patent: 6130525 (2000-10-01), Jung et al.
patent: 6148220 (2000-11-01), Sharp et al.
patent: 6624702 (2003-09-01), Dening
patent: 6624711 (2003-09-01), Khan et al.
patent: 6624712 (2003-09-01), Cygan et al.
patent: 6636112 (2003-10-01), McCune
patent: 6701138 (2004-03-01), Epperson et al.
patent: 6757526 (2004-06-01), Sharp et al.
patent: 6822511 (2004-11-01), Doherty et al.
patent: 6822523 (2004-11-01), Grosspietsch et al.
patent: 6844776 (2005-01-01), Schell et al.
patent: 6850044 (2005-02-01), Hansen et al.
patent: 6897730 (2005-05-01), Dupuis et al.
patent: 6900697 (2005-05-01), Doyle et al.
patent: 6914487 (2005-07-01), Doyle et al.
patent: 6975494 (2005-12-01), Tang et al.
patent: 7024649 (2006-04-01), Collmeyer et al.
patent: 7038536 (2006-05-01), Cioffi et al.
patent: 7058373 (2006-06-01), Grigore
patent: 7071668 (2006-07-01), Sasaki
patent: 7102338 (2006-09-01), Osburn et al.
patent: 7132891 (2006-11-01), Dening et al.
patent: 7256571 (2007-08-01), Mimberg et al.
patent: 7342387 (2008-03-01), Li
patent: 7378823 (2008-05-01), Yamanaka et al.
patent: 7382195 (2008-06-01), Chen et al.
patent: 7471155 (2008-12-01), Levesque
patent: 7679433 (2010-03-01), Li
patent: 7701690 (2010-04-01), Li et al.
patent: 7723969 (2010-05-01), Li
patent: 2007/0252563 (2007-11-01), Kumagai et al.
patent: 2007/0259639 (2007-11-01), Kovacic et al.
Imtiaz Ali et al., “A Fast Response, Programmable PA Regulator Subsystem for Dual Mode CDMA/AMPS Handsets,” 2000 IEEE, pp. 139-142.
Yushan Li et al., “High Efficiency Wide Bandwidth Power Supplies for GSM and Edge RF Power Amplifiers,” 2005 IEEE, pp. 1314-1317.
Biranchinath Sahu et al., “A High-Efficiency Linear RF Power Amplifier With a Power-Tracking Dynamically Adaptive Buck-Boost Supply,” IEEE Transactions on Microwave Theory and Techniques, vol. 52, No. 1, Jan. 2004, pp. 112-120.
Rajarshi Paul, et al., “Smooth Transition and Ripple Reduction in 4-Switch Non-Inverting Buck-Boost Power Converter for WCDMA RF Power Amplifier”, 2008 IEEE, p. 3266-3269.
“LM3668, 1A, High Efficiency Dual Mode Single Inductor Buck Boost DC/DC Converter”, National Semiconductor Corporation, Mar. 24, 2009, 18 pages.
Jingquan Chen, et al., “Analysis and Design of a Low-Stress Buck-Boost Converter in Universal-Input PFC Applications”, IEEE Transactions on Power Electronics, vol. 21, No. 2, Mar. 2006, p. 320-329.
LM3209 Product Brief, “Seamless-Transition Buck-Boost Converter for LTE and HSUPA”, National Semiconductor Corporation, Oct. 21, 2009, 4 pages.
Feipeng Wang, et al., “Wideband Envelope Elimination and Restoration Power Amplifier with High Efficiency Wideband Envelope Amplifier for WLAN 802.11g Applications”, 2005 IEEE, p. 645-648.
V. Yousefzadeh, et al., “Efficiency Optimization in Linear-Assisted Switching Power Converters for Envelope Tracking in RF Power Amplifiers”, 2005 IEEE, p. 1302-1305.
Frederick H. Raab, et al., “Power Amplifiers and Transmitter for RF and Microwave”, IEEE Transactions on Microwave Theory and Techniques, vol. 50, No. 3, Mar. 2002, p. 814-826.
“LMH6678, Low Power 2-Channel Central-Office xDSL Driver”, National Semiconductor Corporation, Dec. 2003, 17 pages.
Craig Steinbeiser, et al., “250W HVHBT Doherty with 57% WCDMA Efficiency Linearized to -55dBc for 2c11 6.5dB PAR”, 2007 IEEE, 4 pages.
Yu Zhao, et al., “Doherty Amplifier with DSP Control to Improve Performance in CDMA Operation”, 2003 IEEE, p. 687-690.
Tae-Woo Kwak, et al., “A 2 W CMOS Hybrid Switching Amplitude Modulator for EDGE Polar Transmitters”, IEEE Journal of Solid-State Circuits, vol. 42, No. 12, Dec. 2007, p. 2666-2676.
J. Staudinger, et al., “High Efficiency CDMA RF Power Amplifier Using Dynamic Envelope Tracking Technique”, 2000 IEEE, p. 873-876.
Jeremy Popp, et al., “A Fully-Integrated Highly-Efficient RF Class E SiGe Power Amplifier With an Envelope-Tracking Technique for EDGE Applications”, 2006 IEEE, p. 231-234.
Jennifer Kithcen, et al., “Combined Linear and Δ-Modulated Switched-Mode PA Supply Modulator for Polar Transmitters”, 2007 IEEE International Solid-State Circuits Conference, 3 pages.
Donald F. Kimball, et al., “High-Efficiency Envelope-Tracking W-CDMA Base-Station Amplifier Using GaN HFETs”, IEEE Transactions on Microwave Theory and Techniques, vol. 54, No. 11, Nov. 2006, p. 3848-3856.
Yushan Li, “System and Method for Providing Optimized Feedback Loop Compensation for Buck/Boost Switching Power Converters”, U.S. Appl. No. 12/157,223, filed Jun. 9, 2008.
Yushan Li, “System and Method for Providing a Dynamically Configured Low Drop Out Regulator With Zero Quiescent Current and Fast Transient Response”, U.S. Appl. No. 12/008,852, filed Jan. 15, 2008.
Yushan Li, “Power Amplifier Multiple Stage Control for Polar Modulation Circuit”, U.S. Appl. No. 12/152,227, filed May 13, 2008.
Yushan Li, “Circuit for Pulse Width Modulation (PWM) Signal Generation in Buck-Boost Switching Power Converters and Related Method”, U.S. Appl. No. 12/577,596, filed Oct. 12, 2009.
Hans P. Tuinhout et al., “Design and Characterization of a High-Precision Resistor Ladder Test Structure”, IEEE Transactions on Semiconductor Manufacturing, vol. 16, No. 2, May 2003, pp. 187-193.
M. Z. Lee et al., “Characteristics of Vertical Thermal/PECVD Polysilicon Oxides Formed on the Sidewall of Polysilicon Films”, Journal of the Electrochemical Society, 150 (1) pp. G28-G32 (2003).
Shylaja Katakam et al., “Resistor Matching Characterization for Process Development Using D/A Converter”, Proc. IEEE 2001 Int. Conference on Microelectronic Test Structures, vol. 14, Mar. 2001, pp. 219-222.
Abu H. M. Kamel et al., Obtaining Silicide Free Spacers by Optimizing Sputter Etch for Deep Submicron CMOS Processes, IEEE Transactions on Semiconductor Manufacturing, vol. 15, No. 3, Aug. 2002, pp. 350-354.
S.Y. Ku et al., “Pre-Metal Clean Optimization for Cluster Defect Prevention”, 2001 IEEE, pp. 499-501.
Stefan Hausser et al., “Mismatch in Diffusion Resistors Caused by Photolithography”, IEEE Transactions on Semiconductor Manufacturing, vol. 16, No. 2, May 2003, pp. 181-186.
Biranchinath Sahu, et al., “A High Efficiency WCDMA RF Power Amplifier With Adaptive, Dual-Mode Buck-Boost Supply and Bias-Current Control”, IEEE Microwave and Wireless Components Letters, vol. 17, No. 3, Mar. 2007, p. 238-240.
Bumman Kim, et al., “High Efficiency RF Transmitter Architectures Modulating Power Supply”, 2007 IEEE, Sep. 26-28, 2007, p. 149-155.
Vahid Yousefzadeh, et al., “Digitally Controlled DC-DC Converter for RF Power Amplifier”, 2004 IEEE, p. 81-87.
Biranchinath Sahu, et al., “System-Level Requirements of DC-DC Converters for Dynamic Power Supplies of Power Amplifiers”, 2002 IEEE, p. 149-152.
National Semiconductor Corporation
Tran Nguyen
Vu Bao Q
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