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Precision rectifier

About: Precision rectifier is a research topic. Over the lifetime, 4952 publications have been published within this topic receiving 63668 citations. The topic is also known as: super diode.


Papers
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Proceedings ArticleDOI
17 Jun 2012
TL;DR: In this paper, a class-C 2.45 GHz Schottky-diode rectifier with short-circuit 2nd and 3rd harmonic terminations is designed using source-pull measurements, and demonstrates a maximum RF-DC conversion efficiency of 72.8% when matched to 50Ω.
Abstract: In wireless powering, the rectifier efficiency has a large effect on overall system efficiency. This paper presents an approach to high-efficiency microwave rectifier design based on reduced conduction angle power amplifier theory. The analysis for an ideal rectifying device is derived to predict efficiency dependence on optimal dc load. A class-C 2.45 GHz Schottky-diode rectifier with short-circuit 2nd and 3rd harmonic terminations is designed using source-pull measurements, and demonstrates a maximum RF-DC conversion efficiency of 72.8% when matched to 50Ω. The approach is applied to integration of a rectifier with a dual-polarization patch antenna in a non 50Ω environment and free-space measurements demonstrate a lower bound on efficiency of 56% at 150 µW\cm2 power density which includes matching circuit and mismatch losses.

31 citations

Patent
29 Jun 1972
TL;DR: In this article, an improved d-c power supply system was proposed, which consisted of a first rectifier serially connected to the power source, and series connection composed of a protective resistor and a back-up capacitor.
Abstract: Herein disclosed is an improved d-c power supply system which comprises a d-c power source, a first rectifier serially connected to the power source, and series connection composed of a protective resistor and a back-up capacitor, the series connection being connected across the first rectifier and the power source, and the protective resistor being bypassed by a second rectifier so that a discharge current from the back-up capacitor flows through the second rectifier. The power supply system further comprises means for producing information signals representing condition of the back-up capacitor.

31 citations

Proceedings Article
23 Dec 2013
TL;DR: A rectifier circuit capable of recovering signals at 2.45 GHz with a high RF-DC efficiency conversion and a prototype that shows a maximum conversion efficiency of 70.4% for a RF input power of 0 dBm.
Abstract: This paper presents a new approach for a high-efficiency rectifier circuit design at 2.45 GHz. Due to nonlinear behavior it is not trivial to predict a correct model of a Schottky diode. When modeling, one should take into account the presence of the harmonics. To increase the conversion efficiency an electromagnetic resonant phenomenon is necessary. To validate this method, we developed a rectifier circuit capable of recovering signals at 2.45 GHz with a high RF-DC efficiency conversion. The prototype shows a maximum conversion efficiency of 70.4% for a RF input power of 0 dBm at 2.45 GHz.

31 citations

Proceedings ArticleDOI
01 Jul 1999
TL;DR: In this paper, a simple control technique applied to three-phase rectifier units with high power factor and equilibrated currents in the input is presented, where the output current of each single-phase module needs only to be equal, once the output voltage is common to all of them.
Abstract: This paper presents a simple control technique applied to three-phase rectifier units with high power factor and equilibrated currents in the input. The rectifier unit is composed of three single-phase modules without neutral connection and independent power factor pre-regulation stages. In order to obtain equal power processing in each phase, the output current of each single-phase module needs only to be equal, once the output voltage is common to all of them. The same current in each module is ensured by the current mode control technique. Theoretical analysis of the control technique, along with experimental results are provided in this paper.

31 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202345
202299
20217
202017
201910
201833