A New Non-Isolated Low-Power Inductorless Piezoelectric DC–DC Converter

Step up dcdc converter pdf

Analysis and Design of a New Single Switch Non-Isolated Buck-Boost dc-dc Converter

In this paper, a new transformerless buck-boost converter based on ZETA converter is introduced. The proposed converter has the ZETA converter advantages such as, buck-boost capability and input to output DC insulation. The suggested converter voltage gain is higher than the classic ZETA converter. In the presented converter, only one main switch is utilized. The proposed converter offers low v...

Ultra-Wideband, Low-Power, Inductorless, 3.1-4.8 GHz, CMOS VCO

A low-power, inductorless, UWB CMOS voltage controlled oscillator is designed in 0.18 μm CMOS technology targeting to a UWBFM transmitter application. The VCO is a Double-Cross-Coupled Multivibrator and generates output frequencies ranging from 1.55 GHz to 2.4 GHz. A low-power frequency doubler based on a Gilbert cell, which operates in weak inversion, doubles the VCO tuning range from 3.1 GHz ...

An Inductorless Self-Controlled Rectifier for Piezoelectric Energy Harvesting

This paper presents a high-efficiency inductorless self-controlled rectifier for piezoelectric energy harvesting. High efficiency is achieved by discharging the piezoelectric device (PD) capacitance each time the current produced by the PD changes polarity. This is achieved automatically without the use of delay lines, thereby making the proposed circuit compatible with any type of PD. In addit...

22.2 A 1.7mm2 inductorless fully integrated flipping-capacitor rectifier (FCR) for piezoelectric energy harvesting with 483% power-extraction enhancement

Energy Harvesting is crucial to the development of miniaturized implants to achieve minimal invasiveness and system autonomy. While RF wireless power transfer suffers from substantial tissue attenuation, a wireless piezoelectric energy harvester (PEH) is more attractive for deep-tissue implant applications [1]. Typical PEH interfaces with a full-bridge rectifier for AC-DC conversion with limite...