高效双输出调节整流器和绝热电荷泵用于生物医学应用的无线电力传输

IF 1.6 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Low Power Electronics and Applications Pub Date : 2023-03-04 DOI:10.3390/jlpea13010020
Noora Almarri, P. Langlois, D. Jiang, A. Demosthenous
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引用次数: 0

摘要

电源管理单元(PMU)是多样化的多功能低功耗物联网(IoT)和生物医学电子的重要组成部分。本文对由脉宽调制(PWM)和脉冲频率调制(PFM)组成的大电流、单级交直流、可重构、双输出调节整流器进行了理论分析。调节整流器从输入交流电压提供1.8V和3.3V的两个独立调节的电源电压。PFM控制反馈包括反馈驱动调节,以通过有源整流器中的自适应缓冲器来调节功率晶体管的驱动频率。PWM/PFM模式控制提供反馈回路以精确地调整导通持续时间并最小化功率损耗。该设计还包括绝热电荷泵(CP)以提供更高的电压电平。绝热CP由闩锁和节能拓扑组成,以提高其功率效率。仿真结果表明,当交流输入幅值为3.5Vp时,双调节整流器的电压转换效率为94.3%。经调节的3.3V输出电压的功率转换效率为82.3%。绝热CP的总电压转换效率(VCE)为92.9%,片上总电容为60pF。电路采用180nm CMOS技术设计。
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Efficient Dual Output Regulating Rectifier and Adiabatic Charge Pump for Biomedical Applications Employing Wireless Power Transfer
A power management unit (PMU) is an essential block for diversified multi-functional low-power Internet of Things (IoT) and biomedical electronics. This paper includes a theoretical analysis of a high current, single-stage ac-dc, reconfigurable, dual output, regulating rectifier consisting of pulse width modulation (PWM) and pulse frequency modulation (PFM). The regulating rectifier provides two independently regulated supply voltages of 1.8 V and 3.3 V from an input ac voltage. The PFM control feedback consists of feedback-driven regulation to adjust the driving frequency of the power transistors through adaptive buffers in the active rectifier. The PWM/PFM mode control provides a feedback loop to adjust the conduction duration accurately and minimize power losses. The design also includes an adiabatic charge pump (CP) to provide a higher voltage level. The adiabatic CP consists of latch-up and power-saving topologies to enhance its power efficiency. Simulation results show that the dual regulating rectifier has 94.3% voltage conversion efficiency with an ac input magnitude of 3.5 Vp. The power conversion efficiency of the regulated 3.3 V output voltage is 82.3%. The adiabatic CP has an overall voltage conversion efficiency (VCE) of 92.9% with a total on-chip capacitance of 60 pF. The circuit was designed using 180 nm CMOS technology.
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来源期刊
Journal of Low Power Electronics and Applications
Journal of Low Power Electronics and Applications Engineering-Electrical and Electronic Engineering
CiteScore
3.60
自引率
14.30%
发文量
57
审稿时长
11 weeks
期刊最新文献
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