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;
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;
a constant power supply, anda supply switch adapted to select between the constant power supply and the adjustable power supply to bias the power amplifier, the supply switch controlled by the secondary control signals based on the mode of operation,whereinthe mode of operation comprises a first mode of operation and a second mode of operation selectable via the 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, anda constant supply to bias the drain of the power amplifier when the supply switch selects the constant power supply.
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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.
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Citations
55 Claims
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1. An amplifier arrangement configured to operate based on a mode of operation, comprising:
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an adjustable power supply controlled by a first control signal to provide either a variable supply or a constant supply to the amplifier arrangement; 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; a constant power supply, and a supply switch adapted to select between the constant power supply and the adjustable power supply to bias the power amplifier, the supply switch controlled by the secondary control signals 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 the 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 a constant supply to bias the drain of the power amplifier when the supply switch selects the constant power supply. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 43, 44, 45, 46, 47, 48)
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17. A circuital arrangement comprising:
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an amplifier arrangement configured to operate based on a mode of operation, comprising; (i) 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 (ii) 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; one or more additional amplifiers to further amplify an input RF signal; and one or more bypass switches adapted to include/exclude the one or more additional amplifiers from the circuital arrangement with respect to the amplifier arrangement, wherein the one or more bypass switches are controlled by secondary control signals based on the mode of operation, wherein the mode of operation comprises a first mode of operation and a second mode of operation, 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.
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18. A circuital arrangement comprising:
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an amplifier arrangement configured to operate based on a mode of operation, comprising; (i) 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 (ii) 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; one or more additional power amplifiers adapted to further amplify an input RF signal provided on one or more separate paths, the one or more separate paths each providing a different amplification level for the input RF signal; and one or more path switches, the one or more path switches adapted to select one particular path to provide an amplified input RF signal to an output port of the arrangement, the one or more path switches being controlled by secondary control signals based on a desired mode of operation, wherein the mode of operation comprises a first mode of operation and a second mode of operation, 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. - View Dependent Claims (40, 41)
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19. A method for configuring an amplifier arrangement to operate based on a mode of operation comprising:
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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, 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 a constant supply to bias the drain of the power amplifier when the supply switch selects the constant power supply. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 38, 42, 49, 50, 51)
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36. A method comprising:
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providing an adjustable power supply adapted to provide either variable supply or constant supply to an amplifier arrangement configured to operate based on a mode of operation; 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; providing a second control signal to control the configuration arrangement, providing one or more additional amplifiers to further amplify an input signal; and providing one or more bypass switches adapted to include or exclude the one or more additional amplifiers with respect to the amplifier arrangement, wherein the one or more bypass switches are controlled by secondary control signals based on the mode of operation, wherein the mode of operation comprises a first mode of operation and a second mode of operation, 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.
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37. A method comprising:
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providing an adjustable power supply adapted to provide either variable supply or constant supply to an amplifier arrangement configured to operate based on a mode of operation; 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; providing a second control signal to control the configuration arrangement, providing one or more additional amplifiers adapted to further amplify an input signal provided on one or more separate paths, wherein the one or more separate paths each provide a different amplification level for the input signal; and providing one or more path switches, the one or more path switches adapted to select one particular path and are controlled by secondary control signals based on the mode of operation, wherein the mode of operation comprises a first mode of operation and a second mode of operation, 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. - View Dependent Claims (39)
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52. An amplifier arrangement configured to operate based on a mode of operation, comprising:
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an adjustable power supply controlled by a first control signal to provide either a variable supply or a constant supply to the amplifier arrangement; 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; and a feedback loop connected between an input and an output of the amplifier arrangement, the feedback loop adapted to adjust an amplitude and/or a phase response of the amplifier arrangement based on the mode of operation, the feedback loop comprising; a resistor, a capacitor and a feedback loop switch, the feedback loop switch adapted to enable/disable an operation of the feedback loop with respect to the amplifier arrangement and is controlled by secondary control signals based on the mode of operation, wherein the mode of operation comprises a first mode of operation and a second mode of operation, 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.
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53. An amplifier arrangement configured to operate based on a mode of operation, comprising:
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an adjustable power supply controlled by a first control signal to provide either a variable supply or a constant supply to the amplifier arrangement; 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; and a feedback loop connected between an input and an output of the amplifier arrangement, the feedback loop adapted to adjust an amplitude and/or a phase response of the amplifier arrangement based on the mode of operation, the feedback loop comprising; a tunable resistor and a tunable capacitor, the tunable resistor and the tunable capacitor adapted to tune the feedback loop with respect to the amplifier arrangement and controlled by secondary control signals based on the mode of operation, wherein the mode of operation comprises a first mode of operation and a second mode of operation, 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.
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54. A method for configuring an amplifier arrangement to operate based on a mode of operation comprising:
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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; providing a second control signal to control the configuration arrangement; and providing a feedback loop, wherein the feedback loop is connected between an input and an output of the amplifier arrangement and is adapted to adjust an amplitude and/or a phase response of the amplifier arrangement based on the mode of operation, wherein the mode of operation comprises a first mode of operation and a second mode of operation, 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, 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 feedback loop comprises a resistor, a capacitor and a feedback loop switch, the feedback loop switch adapted to enable or disable an operation of the feedback loop with respect to the amplifier arrangement and is controlled by secondary control signals based on the mode of operation.
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55. A method for configuring an amplifier arrangement to operate based on a mode of operation comprising:
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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; providing a second control signal to control the configuration arrangement; and providing a feedback loop, wherein the feedback loop is connected between an input and an output of the amplifier arrangement and is adapted to adjust an amplitude and/or a phase response of the amplifier arrangement based on the mode of operation, wherein the mode of operation comprises a first mode of operation and a second mode of operation, 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, the adjustable power supply is configured to provide a bias voltage to a drain of a transistor of the power amplifier, and the feedback loop comprises a tunable resistor and a tunable capacitor, the tunable resistor and the tunable capacitor adapted to tune the feedback loop with respect to the amplifier arrangement and controlled by secondary control signals based on the mode of operation.
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Specification