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Overall consideration including bonding wire effects is needed because conventional DC-DC boost converter used in energy harvesting systems suffers from large output voltage ripple in steady state and transient response. Thus, this paper proposed the pumping capacitor and wire inductance (PCWI) technique to suppress output voltage ripple to an ultra-low value. Small steady state voltage across the...
A buck/boost supply modulator (BBSM) is proposed for 4G LTE RF power amplifier (RF-PA) envelope tracking applications. The H-bridges used in non-inverting buck/boost converters are metamorphosed into the current sources and switches of a 4-bit current-steering DAC-like supply modulator. Fast tracking speed is achieved through its inherent open-loop topology, while the direct digital interface provides...
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