Multi-Mode Power Amplifier for Efficient Wireless Devices
Here’s PatSnap Eureka !
Summary
Problems
Wireless devices face challenges in supporting multiple communication modes while minimizing size and cost, as the inclusion of multiple power amplifiers increases complexity and power inefficiency due to varying power requirements across different communication networks.
Innovation solutions
A power amplifier module with a bypass switch that selects supply voltages from a plurality, including battery and buck-converter voltages, allows the power amplifier to support multiple communication networks with maintained power efficiency across dynamic frequency ranges, using a buck converter to optimize voltage supply without adding size or cost.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If multiple power amplifiers are included to support multiple communication modes, then communication versatility is improved, but device size and complexity increase
Why choose this principle:
The patent implements a universal power amplifier that can operate across multiple communication modes (2G, 3G, 4G) by dynamically adjusting its supply voltage. The bypass switch enables the same PA to be supplied from different voltage sources (battery or buck-converter) depending on the communication mode, allowing one amplifier to perform multiple functions that previously required separate amplifiers for each mode.
Principle concept:
If multiple power amplifiers are included to support multiple communication modes, then communication versatility is improved, but device size and complexity increase
Why choose this principle:
The patent changes the operating parameter (supply voltage) of the power amplifier based on the communication mode. By switching between different voltage levels (higher voltage for 2G, lower voltage for 3G/4G), the same power amplifier can adapt to different communication standards, eliminating the need for multiple dedicated amplifiers and reducing device complexity.
Application Domain
Data Source
AI summary:
A power amplifier module with a bypass switch that selects supply voltages from a plurality, including battery and buck-converter voltages, allows the power amplifier to support multiple communication networks with maintained power efficiency across dynamic frequency ranges, using a buck converter to optimize voltage supply without adding size or cost.
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.