scispace - formally typeset
Patent

Apparatus for multi-level switched-capacitor rectification and DC-DC conversion

Reads0
Chats0
TLDR
In this article, a voltage-step down rectifier topology suitable for integration on a die of an integrated circuit is described, and a switched capacitor rectifier is provided having an architecture such that an input voltage swing of the switched-capacitor rectifier was a factor N times an output voltage.
Abstract
A voltage-step down rectifier topology suitable for integration on a die of an integrated circuit is described. In one embodiment, a switched capacitor rectifier is provided having an architecture such that an input voltage swing of the switched-capacitor rectifier is a factor N times an output voltage where N depends upon the number of stages such that the switched-capacitor rectifier can provide a π/(2N) step-down voltage conversion ratio between an input fundamental ac peak voltage to the output dc voltage. In one embodiment, the rectifier is used in dc-dc conversion. In one embodiment, the rectifier is used in ac power delivery to low-voltage electronics.

read more

Citations
More filters
Patent

Linearization Circuits And Methods For Multilevel Power Amplifier Systems

TL;DR: In this paper, the authors have described circuits and methods for achieving high linearity, high efficiency power amplifiers, including digital predistortion (DPD) and pulse cancellation in switched-state RF power amplifier systems.
Patent

Systems and methods for a variable frequency multiplier power converter

TL;DR: In this paper, a power converter for converting DC power to DC power includes an inverter stage having two or more switched inverters configured to receive DC power from a source and produce a switched AC output power signal.
Patent

GaN circuit drivers for GaN circuit loads

TL;DR: In this paper, an electronic circuit including a substrate having GaN, and a power switch formed on the substrate and including a first control gate and a first source was disclosed, where the output can be driven to the supply voltage.
Patent

Switched-Capacitor Split Drive Transformer Power Conversion Circuit

TL;DR: In this paper, a split drive transformer (SDT) and use of such a transformer in a power converter is described, where the power converter includes a power and distributor circuit configured to receive one or more input signals and provides multiple signals to a first side of the SDT.
Patent

Linearity and noise improvement for multilevel power amplifier systems using multi-pulse drain transitions

TL;DR: In this article, a radio frequency (RF) amplifier system having at least one amplifier is described, which includes an RF input port, an RF output port and a drain bias port.
References
More filters
Patent

Apparatus and methods for envelope tracking

TL;DR: In this paper, a power amplifier system including an envelope tracker is presented, where the power amplifier is configured to amplify a radio frequency (RF) signal, and the envelope tracker includes a buck converter for generating a buck voltage from a battery voltage and a digital-to-analog conversion (DAC) module for adjusting the buck voltage based on the envelope of the RF signal.
Patent

Charge pump circuit and methods of operation thereof

TL;DR: A charge pump circuit as mentioned in this paper provides a split-rail voltage supply, the circuit having a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of said states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage and centered on the voltage at the common terminal.
Patent

Power Converter With Capacitive Energy Transfer And Fast Dynamic Response

TL;DR: In this article, a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) is proposed for high power density power conversion, which can achieve high performance over a wide input voltage range or a wide output voltage range.
Journal ArticleDOI

Analysis and Design of High Efficiency Matching Networks

TL;DR: In this article, the authors present analysis and design considerations for lumped (inductor and capacitor) matching networks operating at high efficiency (>95%) and give formulas for calculating matching network efficiency, which can be expressed as a function of inductor quality factor QL, capacitor quality factor QC, and transformation ratio.
Patent

Methods and apparatus for a resonant converter

TL;DR: In this article, a dc-dc converter for operating at substantially fixed switching frequency, the converter including a rectifier, and a resonant inverter coupled to the rectifier and a switch, is presented.