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Envelope Tracking (ET) Technique can remarkably improve the efficiency of the power amplifier (PA) in the modern Mobile Communication Base Station. Switch-Linear Hybrid (SLH) ET power supply has become the mainstream structure, which gives consideration to high efficiency and high bandwidth. However, the SLH ET power supply with single switching converter suffers a low efficiency as increasing the...
Featuring high bandwidth and high efficiency, the switch-linear hybrid envelope tracking (SLH-ET) power supply has been gaining considerable attentions. This paper proposes a new configuration for SLH-ET power supply, which consists of a switching-mode converter with a step-wave approach and a linear amplifier connected in parallel. The switches in the switching-mode converter are operated only one...
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