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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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Journal ArticleDOI
TL;DR: In this paper, a three-phase harmonic-free rectification scheme based on a zero-sequence injection technique is proposed, which incorporates two half-bridge inverters and two single-phase transformers to actively shape the positive and negative dc rail currents of the rectifier.
Abstract: This paper proposes a new three-phase harmonic-free rectification scheme based on a zero-sequence injection technique. The proposed scheme incorporates two half-bridge inverters and two single-phase transformers to actively and individually shape the positive and negative dc rail currents of the rectifier. The shaped zero-sequence harmonic currents are then circulated through the ac side of the rectifier via a zigzag transformer, resulting in pure sinusoidal input currents in the three-phase diode rectifier. A design example along with component ratings calculation are detailed. Experimental results on a 1.5-kVA prototype are provided to validate the proposed technique.

33 citations

Proceedings Article
12 Apr 2010
TL;DR: In this article, a modified bridge rectifier with four Schottky diodes was designed and optimized using a global simulation technique which associates electromagnetic and circuit approaches in order to accurately predict the rectifier performances.
Abstract: This paper reports a novel rectifying antenna (rectenna) based on modified bridge rectifier with four Schottky diodes. The 2.45-GHz microwave rectifier has been developed and optimized using a global simulation technique which associates electromagnetic and circuit approaches in order to accurately predict the rectifier performances. The presented device doesn't need neither input HF filter nor bypass capacitor. This makes the structure more compact and low cost. A 2.45GHz linearly polarized patch antenna has been designed and associated to the microwave rectifier to obtain the full rectenna. The rectifier achieves an RF-to-dc conversion efficiency of 61% at 10 mW input power. When the power density is 0.15 mW/cm², the full rectenna circuit shows an efficiency of 52% over an optimal resistive load of 1050Ω.

33 citations

Journal ArticleDOI
TL;DR: In this article, the rectifier input current controller can be operated with either fixed frequency or random frequency both with their advantages and shortcomings, and the design issues and the performance of the two current modulation strategies are investigated and compared.
Abstract: Three-phase three-level rectifier (TPTL) is popular in present days for high-power application owing to its low blocking-voltage stress on the power switches (half of dc-link voltage). Such a rectifier can also operate as unity power factor (PF) converter as presented in this work. The rectifier input current controller can be operated with either fixed frequency or random frequency both with their advantages and shortcomings. In this study, the current controller is implemented with: (a) conventional hysteresis current control (random frequency) and (b) average current control (fixed frequency). The design issues and the performance of the two current modulation strategies are investigated and compared. Rectifier performance parameter, that is, THD and PF are evaluated and confirmed through hardware prototype results.

33 citations

Proceedings ArticleDOI
03 Mar 1996
TL;DR: In this article, a peak-current-controlled high-power-factor boost rectifier, with slope compensation, operating at constant frequency, is presented, with continuous inductor current mode.
Abstract: This paper presents the analysis and the design of a peak-current-controlled high-power-factor boost rectifier, with slope compensation, operating at constant frequency. The input current shaping is achieved, with continuous inductor current mode, with no multiplier to generate a current reference. The resulting overall circuitry is very simple, in comparison with the average-current-controlled boost rectifier. Experimental results are presented, taken from a laboratory prototype rated at 370 W and operating at 67 kHz. The measured power factor was 0.99, with a input current THD equal to 5.6%, for an input voltage THD equal to 2.26%.

33 citations

Journal ArticleDOI
TL;DR: In this article, a method of controlling the characteristics of the merged p-i-n Schottky (MPS) rectifier is demonstrated both theoretically and experimentally, and a curve for the tradeoff between the forward voltage drop and the switching characteristics can be obtained using this method, while maintaining a constant minority carrier lifetime.
Abstract: A method of controlling the characteristics of the merged p-i-n Schottky (MPS) rectifier is demonstrated both theoretically and experimentally. It is based on varying the relative area of the p/sup +/-n junction and Schottky regions in the device. A curve for the tradeoff between the forward voltage drop and the switching characteristics can be obtained using this method, while maintaining a constant minority-carrier lifetime. It is shown that this curve is superior to that obtained for the p-i-n rectifier using lifetime control techniques. This method of performing the tradeoff has the advantage that it can be done at the design stage, avoiding the problems and additional processing associated with lifetime control. It is also demonstrated that the superior characteristics of the MPS rectifier is retained even when a thick high-resistivity epilayer is used for high blocking voltages up to 900 V. >

33 citations


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