System-level requirements of DC-DC converters for dynamic power supplies of power amplifiers
Proceedings. IEEE Asia-Pacific Conference on ASIC, - Trang 149-152
Tóm tắt
The energy efficiency of battery-operated portable applications can be improved by increasing the efficiency of power amplifiers (PAs). By dynamically changing the supply voltage from the fixed battery supply using a DC-DC converter, the PA can be operated with high efficiency during power back-off. This paper presents the system level requirements for a buck converter and other blocks in a dynamic power supply scheme for PA. Simulation results for the effects of ripple in the power supply of the PA and delay mismatch using behavioral models of constituent blocks and circuit-level PA have been presented.
Từ khóa
#DC-DC power converters #Power supplies #Power amplifiers #Energy efficiency #Voltage #Batteries #Buck converters #Circuit simulation #Delay effects #Power system modelingTài liệu tham khảo
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