Current-accelerated voltage transition in a wireless communication circuit

Abstract

Current-accelerated voltage transition in a wireless communication circuit is disclosed. The wireless communication circuit includes a power management integrated circuit (PMIC) configured to generate a voltage, such as an average power tracking (APT) voltage, for amplifying a radio frequency (RF) signal in multiple continuous voltage modulation intervals. In a non-limiting example, each of the voltage modulation intervals can be an orthogonal frequency division multiplexing (OFDM) symbol or a timeslot with multiple OFDM symbols. According to embodiments disclosed herein, the PMIC can generate an acceleration current with an appropriate polarity to accelerate a transition of the voltage quickly between consecutive voltage modulation intervals. By supporting the current-accelerated voltage transition, the wireless transmission circuit can enable fast voltage adaptation to thereby improve operating efficiency of a power amplifier circuit.

Dependencies are inferred from the claim text.