Amplifiers – Combined with automatic amplifier disabling switch means
Reexamination Certificate
2007-02-27
2007-02-27
Pascal, Robert (Department: 2817)
Amplifiers
Combined with automatic amplifier disabling switch means
C330S285000, C330S297000
Reexamination Certificate
active
11029099
ABSTRACT:
A power amplifier arrangement is disclosed which has two or more amplifiers connected in parallel. The amplifiers can be switched on and off independently of one another by means of control devices. At least one DC/DC converter is provided for supplying voltage to the amplifiers. A significant improvement in the efficiency of a power amplifier is achieved by the combination of the voltage supplied by means of a DC/DC converter for the amplifiers with distributed power gain. The arrangement is therefore particularly suitable for use in mobile radio transmission arrangements.
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“Polar Loop™ Radio Subsystem for GSM™, GPRS, and EDGE Mobile Handset Applications”, Skyworks Solutions, Inc., Jul. 18, 2003, 2 pgs.
“Single Inductor, Tiny Buck-Boost Converter Provides 95% Efficiency in Lithium-Ion to 3.3V Applications—Design Note 275”, Mark Jordan, Linear Technology Design Notes; dn275f LT/TP 0102 371.5K; Linear Technology Corporation, 2002, 2 pgs.
U.S. Appl. No. 11/029,853, filed Jan. 5, 2005, Josef Fenk.
Eschweiler & Associates LLC
Nguyen Hieu
Pascal Robert
LandOfFree
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