Power Management

Abstract 5G new-radio frequency-range-2 CMOS PAs with high peak-to-average-power ratios suffer from low efficiency, calling for compact and fast symbol-power-tracking (SPT) supply modulators (SMs). Inductor-based SPT sho

Abstract This paper presents a symbol power tracking supply modulator that delivers a high output voltage and a wide output range for 5G high-voltage GaN PAs. To accelerate voltage transitions, a two-step subranging DVS

Abstract This paper presents a 100A 93.4%-peak-efficiency LLC resonant converter with an embedded primary-current-extracted regulator. The proposed regulator powers the gate drivers of the LLC converter, eliminating the

Abstract This paper presents a 92.4%-peak-efficiency 48V to 0.8-to-1.6V hybrid converter based on an inductor-interleaved Fibonacci switched-capacitor (I2-FSC). The proposed converter reduces ΔVL with few flying capacito

Abstract This work presents an inductor-at-middle hybrid buck converter for high-current density vertical power delivery, reusing the power inductors as signal feedback paths. The proposed switching-bus-multiplexing cont

Abstract This paper presents a 12-to-1V 4-output hybrid DC-DC converter that shares a single DC capacitor among all outputs. This shared capacitor stores and redistributes energy, ensuring independent regulation at each

*Equally Credited Authors (ECAs) Abstract The paper presents a multiple-phase hybrid converter with Q samplers. Split-TON control enables VCF auto-balance and arbitrary phase counts under all-phase interleaving, while 0V

Abstract This work presents a 4V input 12A load resonant sigma converter which consists of a 10MHz high-side switched-capacitor Buck (SCB) and a 5MHz low-side direct resonant switchedcapacitor (ReSC) converter. The propo

Abstract This paper presents a 120V/230Vac to 5-to-12Vdc offline power converter consisting of a capacitor-drop AC-DC rectifier and a full-duty-cycle input-series dual-branch DC-DC converter for IoT devices. The proposed

Abstract This paper presents a hybrid bipolar-output isolated (HBO-I) gate-driver power supply (GDPS) that combines a flyback-based TX with primary-side regulation (PSR) and a switched-capacitor-based RX. Even with a com

Abstract A binary-weighted switched-capacitor gate driver IC achieving up to 85% reduction in driving loss (Edrv) is presented. Four binary-weighted flying capacitors enable nine-level gate-voltage segmentation, enhancin

Abstract A digital feedback active gate driver IC applicable to both high- and low-side 600A, 1200V SiC MOSFETs is proposed and demonstrated on the high-side. High-side voltage sensing uses a parasitic Miller capacitance

Abstract This paper presents a double step-up single-inductor bipolar-output (DSU-SIBO) converter for AMOLED displays. By employing a 1:2 charge pump, the proposed design reduces both DC and AC components of the inductor

Abstract This paper presents a three-mode single-inductor four-quadrant converter with 94.6% peak efficiency for electrochromic smart windows. It supports a 5 to 12V input, a −5 to +5V output and a −3 to 3A load current,

Abstract This paper presents an on-chip switched-capacitor converter, named piggybacked SC-onCSCR, featuring: 1) a power density of 5.67mW/mm2 enabled by eliminating high-voltage switches and jointly utilizing MOM and MO

Abstract This paper presents a 3-phase dual-path buck-boost converter that effectively reduces conduction loss by combining a dual-path topology with adaptive 3-phase control. The proposed control technique minimizes ind

Abstract This work presents a battery charger for smartwatches based on a mesh-connected continuously scalable-conversion ratio converter that uses only two flying capacitors. The proposed design reduces the number of in

Abstract This paper proposes an on-chip sigma regulation system for the accurate and power-efficient control of piezoelectric resonator (PR)-based DC-DC converters to address the challenges of conventional off-chip contr

Abstract This work proposes a predefined-parameter-free runtime-Eloss optimizer for energy-recycling duty-cycled systems. By leveraging a 3-level converter to recycle output-capacitance energy to the flying capacitor, it

Abstract This paper presents a thermoelectric energy harvesting (TEH) interface that realizes: 1) a multi-channel TEH for maximum power point tracking (MPPT) under uneven temperature conditions, improving efficiency by u

Abstract This work proposes a one-stage bidirectional rectifier with a pre-charge voltage (VPC) based perturb-and-observe (P&O) maximum power point tracking (MPPT) algorithm for triboelectric energy harvesting. The propo

Abstract This paper presents a fully integrated PEH interface that enhances output power while minimizing on-chip capacitor area. The proposed design employs a SC structure that reuses both the piezoelectric capacitor an

Abstract A fully digital MPPT is proposed for a bias-flip piezoelectric energy harvester. Once the MPP is identified, its parameters are stored and locked. Even if the vibration amplitude or frequency changes or disappea

Abstract This work presents a PV energy harvesting interface using a self-clamp CSCR SC converter. It reduces VCF stress without additional SC stages, enabling low-voltage CFs, 17.1mW/mm2 power density and 90% peak PCE.

UM Hetao IC Research Institute, Shenzhen, China 3 Tsinghua University, Beijing, China 1 *Equally Credited Authors (ECAs) Humanoid robots have high potential to replace human labors for various tasks in the near future [1

mobile devices. The well-known and widely used Qi wireless power transfer (WPT) standard has been extended to version 2.0, now incorporating the magnetic power profile (MPP) standard in addition to the baseline power pro

convenience. However, high efficiency is usually achieved at a specific load point in current wireless power transfer (WPT) systems rather than in a wide impedance range. The load varies greatly when charging state chang

IBM T. J. Watson Reseach Center, Yorktown Heights, NY 1 2 Wireless power transfer to implanted devices is an elegant solution that can obviate the need for batteries [1–5]. As more functions are implemented in the implan

As 5G communication technology advances, the power consumption of radio frequency power amplifiers (RFPAs) in 5G systems has become increasingly critical. To enhance efficiency, Symbol Power Tracking (SPT) has emerged as

Shenggang Dong2, Masoud Shahshahani2, Won Suk Choi2, Gary Xu2, Marcus Michel3, Ratul Das3,4, Robert Beach3, Hanh-Phuc Le1 University of California, San Diego, CA Samsung Research America, Plano, TX 3 Efficient Power Conv

The 5G new-radio (NR) frequency-range-2 (FR2) for cellular communications supports a maximum channel bandwidth of 400MHz [1] and utilizes orthogonal frequency-division multiplexing (OFDM) to support high data rates with

Hefei CLT Microelectronics, Hefei, China 1 2 Hybrid buck-boost converters have been extensively studied for their ability to efficiently convert varying battery voltages (e.g., 2.8V to 4.2V) to a stable mid-3V output in

University of Macau, Macau, China 3 Tsinghua University, Beijing, China 1 2 Recent emerging applications, such as LiDAR transceivers for autonomous driving and motor drivers for drones and robots, raise the requirements

Tsinghua University, Beijing, China 1 2 *Equally Credited Authors (ECAs) The internet-of-things (IoT) and smart home devices, such as smart power meters and smart remote control, have great demand for high-efficiency, lo

Chien-Wei Cho1, Sheng-Hsi Hung1, Yu-Tse Shih1, Ke-Horng Chen1, Kuo-Lin Zheng2, Ying-Hsi Lin3, Shian-Ru Lin3, Tsung-Yen Tsai3, Hann-Huei Tsai4 National Yang Ming Chiao Tung University, Hsinchu, Taiwan Chip-GaN Power Semic

*Equally Credited Authors (ECAs) Power delivery with galvanic isolation is crucial for ensuring safety and reliability in harsh industrial environments, where isolated DC-DC converters are widely used to meet stringent o

Chien-Wei Cho1, Sheng-Hsi Hung1, Yu-Tse Shih1, Ke-Horng Chen1, Kuo-Lin Zheng2, Ying-Hsi Lin3, Shian-Ru Lin3, Tsung-Yen Tsai3, Hann-Huei Tsai4 National Yang Ming Chiao Tung University, Hsinchu, Taiwan Chip-GaN Power Semic

Galvanically isolated DC-DC converters are gaining more attention in industry for industrial automation and electrical vehicles (e.g., motor drives, battery management systems), consumer electronics (e.g., power adapters

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 *Equally Credited Authors (ECAs) Isolated DC-DC converters [1-8] with low electromagnetic interference (EMI) are crucial for system safety and reliabi

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 As Internet of Things (IoT) devices continue to shrink in size, the limited available system energy is becoming a major bottleneck. Even though the sy

Huazhong University of Science and Technology, Wuhan, China 1 2 *Equally Credited Authors (ECAs) The number of edge sensors for the Internet-of-Things (IoT) has been increasing dramatically every year to feed servers and

harvesting (PEH)—which converts ambient vibrations into electrical energy—has emerged [1–6]. The interface circuit in a PEH system plays a crucial role not only in energy extraction and conversion but also in enabling th

Fudan University, Shanghai, China 1 2 *Equally Credited Authors (ECAs) Along with the rise of the Internet of Things (IoT) and edge artificial intelligence (AI), energy harvesting provides a promising sustainable power s

Chi-Seng Lam1, Rui P. Martins1, Yan Lu1,2,3 University of Macau, Macau, China UM Hetao IC Research Institute, Shenzhen, China 3 Tsinghua University, Beijing, China 1 2 *Equally Credited Authors (ECAs) High-efficiency, hi

Rui P. Martins1, Yan Lu1,2,3 University of Macau, Macau, China Tsinghua University, Beijing, China 3 UM Hetao IC Research Institute, Shenzhen, China 4 Leibniz University Hannover, Hannover, Germany 1 2 *Equally Credited

voltage and current requirements, such as delivering over 1A at voltages below 1V. This drives the need for efficient point-of-load DC-DC converter topologies capable of large step-down conversion with high current densi

significant thermal dissipation. Because long-term exposure to high temperature degrades SoC performance, it is necessary to manage the temperature in the devices. Consequently, low-dropout regulators (LDO) that supply t

Soft-Switching to Discontinuous Conduction Mode in 3nm FinFET CMOS Kishan Joshi1, Avinash Shreepathi Bhat2, Christopher Schaef2, Keng Chen3, Edward Lee2, Yura Kocharyan1, Ajay Janardanan2, Dinesh Ganta2, Huanhuan Zhang3,

critical, particularly in those using a 2-cell battery such as tablets, portable gaming consoles, and power banks. In forward mode (FM), these devices are predominantly charged via a 5V USB travel adapter (VUSB), ensurin

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 In datacenters, direct conversion from a 12V input voltage VIN intermediate bus to point-of-load (PoL) is a common practice for powering computing chi