MULTI-MODE POWER AMPLIFIER MODULE
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Abstract
A power amplifier that can support multiple communication networks while maintaining power efficiency across each of the supported communication networks is disclosed. In some implementations described herein, a power amplifier module includes a bypass circuit that enables different voltage supplies to be provided to the power amplifier. By regulating the voltage supply provided to the power amplifier, the power amplifier can support different communication networks while maintaining power efficiency across a dynamic frequency range. Moreover, embodiments herein may include a buck converter, or other form of DC-DC converter, that enables the power amplifier to operate with respect to multiple communication networks. Advantageously, in certain embodiments, because wireless devices that include multiple power amplifiers often require a DC-DC converter to support at least some of the communication networks, the inclusion of the buck converter in the embodiments described herein does not add additional cost or size to the wireless device.
50 Citations
21 Claims
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1. (canceled)
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2. A power amplifier module comprising:
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a configurable power amplifier configured to process frequencies associated with different communication bands based at least in part on a supply voltage provided to the configurable power amplifier; and a bypass circuit in communication with the configurable power amplifier and configured to regulate selection of the supply voltage provided to the configurable power amplifier based at least in part on a selected communication network, the supply voltage selected from a plurality of possible supply voltages. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. A front-end module comprising:
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a power amplifier module including a configurable power amplifier and a bypass circuit, the configurable power amplifier configured to process a plurality of signals corresponding to a plurality of communication bands based at least in part on a supply voltage provided to the configurable power amplifier, and the bypass circuit in communication with the configurable power amplifier and configured to regulate selection of the supply voltage provided to the configurable power amplifier based at least in part on a selected communication network, the supply voltage selected from a plurality of supply voltages; and a direct current-direct current converter in communication with the power amplifier module and configured to provide at least one supply voltage from the plurality of supply voltages to the bypass circuit. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of operating a power amplifier module, the method comprising:
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receiving, by a baseband processor of a wireless device, an identification of a communication network for transmission of a signal; determining a type of the communication network; and in response to determining that the type of the communication network is of a first type, configuring a bypass circuit of the wireless device to provide a supply voltage from a direct current-direct current converter to a power amplifier of the wireless device. - View Dependent Claims (18, 19, 20, 21)
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Specification