Trending IC design directions in 2022
For the non-stop demands for a better and smarter society, the number of electronic devices
keeps increasing exponentially; and the computation power, communication data rate, smart …
keeps increasing exponentially; and the computation power, communication data rate, smart …
A review of hybrid supply modulators in CMOS technologies for envelope tracking PAs
S Bhardwaj, S Moallemi… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This article reviews trends, architectures, and recent developments in CMOS-based supply
modulators (SM) used for envelope-tracking power amplifiers (ET-PAs). This review details …
modulators (SM) used for envelope-tracking power amplifiers (ET-PAs). This review details …
A high-frequency three-level buck converter with real-time calibration and wide output range for fast-DVS
This paper presents a 50-MHz 5-V-input 3-Woutput three-level buck converter. A real-time
flying capacitor (CF) calibration is proposed to ensure a constant voltage of V g/2 across CF …
flying capacitor (CF) calibration is proposed to ensure a constant voltage of V g/2 across CF …
An envelope tracking supply modulator utilizing a GaN-based integrated four-phase switching converter and average power tracking-based switch sizing with 85.7 …
YT Hsu, ZY Lin, JJ Lee, KH Chen - IEEE Journal of Solid-State …, 2021 - ieeexplore.ieee.org
This article proposes a supply modulator (SM) that uses high switching frequency gallium-
nitride (GaN) devices to achieve a four-phase fast step-down converter for the fast-tracking …
nitride (GaN) devices to achieve a four-phase fast step-down converter for the fast-tracking …
An 87.1% efficiency RF-PA envelope-tracking modulator for 80MHz LTE-Advanced transmitter and 31dBm PA output power for HPUE in 0.153 μm CMOS
CY Ho, SM Lin, CH Meng, HP Hong… - … Solid-State Circuits …, 2018 - ieeexplore.ieee.org
Modulation schemes employed in long-term-evolution advanced (LTE-A) services for higher
data-rate with high peak-to-average power ratios (PAPR) are becoming more complicated …
data-rate with high peak-to-average power ratios (PAPR) are becoming more complicated …
Design of boosted supply modulator with reverse current protection for wide battery range in envelope tracking operation
This paper presents a hybrid supply modulator (SM) including a buck-boost (BB) converter,
which has wide battery operating range for cellular envelope tracking (ET) applications. The …
which has wide battery operating range for cellular envelope tracking (ET) applications. The …
Design techniques for high-efficiency envelope-tracking supply modulator for 5th generation communication
This brief provides a brief tutorial on designing a high efficiency envelope-tracking supply
modulator with recent techniques. Design challenges for 5G communication applications are …
modulator with recent techniques. Design challenges for 5G communication applications are …
A multi-loop-controlled AC-coupling supply modulator with a mode-switching CMOS PA in an EER system with envelope shaping
This paper presents an ac-coupling supply modulator, consist of a 25-MHz three-level
switching amplifier and a wide-bandwidth assisting linear amplifier, and a CMOS power …
switching amplifier and a wide-bandwidth assisting linear amplifier, and a CMOS power …
27.5 A 91%-efficiency envelope-tracking modulator using hysteresis-controlled three-level switching regulator and slew-rate-enhanced linear amplifier for LTE-80MHz …
P Mahmoudidaryan, D Mandal… - … Solid-State Circuits …, 2019 - ieeexplore.ieee.org
Envelope tracking (ET) is widely used to improve the efficiency of linear power amplifiers
(PAs) in applications such as LTE, LTE-Advanced inter-or intra-band carrier aggregation …
(PAs) in applications such as LTE, LTE-Advanced inter-or intra-band carrier aggregation …
A 2TX supply modulator for envelope-tracking power amplifier supporting intra-and inter-band uplink carrier aggregation and power class-2 high-power user …
Uplink carrier aggregation (UL-CA) and high-power user equipment (HPUE) are proposed
in the recent 3GPP standard [1]. UL-CA increases data-rate by aggregating intra-or inter …
in the recent 3GPP standard [1]. UL-CA increases data-rate by aggregating intra-or inter …