Shared Envelope Tracking for Time-Delayed Amplifiers

Power amplifiers are vital components in electronic devices, converting low-power signals to higher power for optimal functionality. However, the efficiency of these power amplifiers has been an ongoing challenge in the industry, affecting power supply management and device performance. Current methods involve individual envelope tracking per power amplifier. However, this approach can lead to power wastage and inefficiency. Furthermore, managing individual envelope tracking for multiple power amplifiers can result in complexity and uneven power distribution, hindering the overall optimization of a power supply.

Technology Description

This new system focuses on advanced power amplifier operation. It is composed of a baseband signal generator linked with a baseband signal digital-to-analog converter and several power amplifiers. These power amplifiers are linked with a shared envelope signal generator connected to an envelope signal digital-to-analog converter. Furthermore, a supply modulator is connected to the envelope signal digital-to-analog converter and the power amplifiers. The advantage of this technology comes from its shared envelope tracking across multiple power amplifiers. This unique feature allows for increased efficiency in the power amplification process. Through this, the system optimizes power delivery, reduces power waste, and enhances the functionality of the connected devices.