Amplifiers operating in envelope tracking mode or non-envelope tracking mode
First Claim
Patent Images
1. An amplifier arrangement configured to operate based on a mode of operation, comprising:
- an adjustable power supply controlled by a first control signal to provide either a variable supply or a constant supply to the amplifier arrangement; and
a power amplifier comprising a configuration arrangement controlled by secondary control signals, the configuration arrangement adapted to configure the power amplifier based on the mode of operation,whereinthe mode of operation comprises a first mode of operation and a second mode of operation selectable via a first supply switch, the first mode of operation corresponding to the adjustable power supply providing variable supply to the power amplifier, the second mode of operation corresponding to the adjustable power supply providing constant supply to the power amplifier, the mode of operation switching between the first mode of operation and the second mode of operation and vice versa based on an input signal to the power amplifier, andthe adjustable power supply is configured to provide;
a bias voltage to a drain of a transistor of the power amplifier and a bias voltage to a gate of a transistor of the power amplifier, andthe constant supply to bias the drain of the power amplifier based on a selected position of the first supply switch.
1 Assignment
0 Petitions
Accused Products
Abstract
Various envelope tracking amplifiers are presented that can be switched between an ET (envelope tracking) mode and a non-ET mode. Switches and/or tunable components are utilized in constructing the envelope tracking amplifiers that can be switched between the ET mode and the non-ET mode.
37 Citations
40 Claims
-
1. An amplifier arrangement configured to operate based on a mode of operation, comprising:
-
an adjustable power supply controlled by a first control signal to provide either a variable supply or a constant supply to the amplifier arrangement; and a power amplifier comprising a configuration arrangement controlled by secondary control signals, the configuration arrangement adapted to configure the power amplifier based on the mode of operation, wherein the mode of operation comprises a first mode of operation and a second mode of operation selectable via a first supply switch, the first mode of operation corresponding to the adjustable power supply providing variable supply to the power amplifier, the second mode of operation corresponding to the adjustable power supply providing constant supply to the power amplifier, the mode of operation switching between the first mode of operation and the second mode of operation and vice versa based on an input signal to the power amplifier, and the adjustable power supply is configured to provide; a bias voltage to a drain of a transistor of the power amplifier and a bias voltage to a gate of a transistor of the power amplifier, and the constant supply to bias the drain of the power amplifier based on a selected position of the first supply switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 28)
-
-
24. A method for configuring an amplifier arrangement to operate based on a mode of operation comprising:
-
providing an adjustable power supply adapted to provide either variable supply or constant supply to the amplifier arrangement; providing a first control signal to control the adjustable power supply, wherein the first control signal controls which supply to be provided to the amplifier arrangement; providing a power amplifier adapted to amplify an input signal, the power amplifier further comprising a configuration arrangement adapted to configure the power amplifier based on the mode of operation; and providing a second control signal to control the configuration arrangement, wherein the mode of operation comprises a first mode of operation and a second mode of operation selectable via a first supply switch, the first mode of operation corresponding to the adjustable power supply providing variable supply to the power amplifier, the second mode of operation corresponding to the adjustable power supply providing constant supply to the power amplifier, the mode of operation switching between the first mode of operation and the second mode of operation and vice versa based on the first control signal and the second control signal, and the adjustable power supply is configured to provide; a bias voltage to a drain of a transistor of the power amplifier and a bias voltage to a gate of a transistor of the power amplifier, and the constant supply to bias the drain of the power amplifier based on a selected position of the first supply switch. - View Dependent Claims (27, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
-
Specification