期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 66, 期 12, 页码 9628-9631出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2018.2885742
关键词
Efficiency enhancement; energy harvesting; green energy; power amplifier (PA); thermoelectric generators (TEGs)
资金
- National Natural Science Foundation of China [61871075, 61571080]
This letter proposes a method to further improve the efficiency of power amplifiers (PAs). A thermoelectric generator is used to harvest the thermal energy produced by the PA and transform it into electric energy. Then, the efficiency of the PA can be improved by feeding the obtained electric energy to the drain power supply via a dc-dc converter. For verification, a 10-W 3.2-3.8-GHz class-F PA for base station applications is built; the generated temperature distribution and the process of energy conversion are evaluated. Cost-effective commercial chips are applied to harvest, transform, convert, and feedback the energies to the drain supply. The measurement results demonstrate an improvement of 1.1% drain efficiency at the peak output.
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