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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: A systematic and effective design method for a current-driven class E circuit is proposed in this paper, which consists of the detailed theoretical analysis and numerical derivation that can achieve optimal results with the optimal design method of the rectifier.
Abstract: In high-frequency dc/dc converters, the resonant rectifier is an important stage that guarantees high efficiency and optimal operating characteristics. However, the existing design approaches are based on trial methods and cannot achieve optimal results. A systematic and effective design method for a current-driven class E circuit is proposed in this paper, which consists of the detailed theoretical analysis and numerical derivation. Furthermore, with the optimal design method, the input impedance of the resonant rectifier can maintain quasi-resistive characteristics. Demonstration of this approach is provided through the experimental results of a 20 MHz dc/dc prototype. The system efficiency can be as high as 81.5% based on the optimal design method of the rectifier.

20 citations

Patent
28 Oct 1983
TL;DR: In this article, the output terminals of the first rectifier are respectively connected to the output of the second rectifier so that two different DC voltages are combined or superposed one on another.
Abstract: In addition to a conventional rectifier responsive to an input AC voltage, another or second rectifier is employed such that the input AC voltage is first reduced to be applied to the second rectifier. To reduce the input AC voltage a transformer or one or more capacitors may be used. Furthermore, when one or more capacitors are used, the input AC voltage may be once boosted by way of a boosting transformer. A capacitor is connected across output terminals of the second rectifier to be charged with a rectified current therefrom. The output terminals of the first rectifier are respectively connected to output terminals of the first rectifier so that two different DC voltages are combined or superposed one on another. A diode is employed to prevent the capacitor from being charged with a current from the first rectifier. As a result of combination or superposition of two differently rectified voltages, a resultant output DC voltage is obtained where the DC voltage is continuously kept above a predetermined voltage. With this arrangement input AC waveform is improved so that power factor is improved.

20 citations

Proceedings ArticleDOI
19 Mar 2006
TL;DR: In this paper, a bidirectional hybrid three-phase rectifier is proposed for medium and high power applications, which employs a three phase diode bridge rectifier and a boost-type three phase PWM rectifier.
Abstract: This paper presents a new bidirectional hybrid three-phase rectifier suitable for medium and high power applications. The rectifier employs a three-phase diode bridge rectifier and a boost-type three-phase PWM rectifier. The proposed rectifier is capable of providing sinusoidal input currents with low harmonic distortion and DC output voltage regulation. The rectifier topology generation, the principle of operation, control scheme and simulation results are described in the paper.

20 citations

Proceedings Article
Yang Sun1, In-Young Lee1, Chang-Jin Jeong1, Seok-Kyun Han1, Sang-Gug Lee1 
07 Apr 2011
TL;DR: A highly efficient active switch-only rectifier is proposed by replacing the conventional full bridge rectifier with the cross-coupled active one in the passive switch- only rectifier, together with simple and effective control circuits, which shows both good power extraction and power conversion capability.
Abstract: Harvesting ambient vibration energy through PE means is a popular energy harvesting technique. The main limitation of this harvesting system is in their interface circuitry. In this paper, a highly efficient active switch-only rectifier is proposed. By replacing the conventional full bridge rectifier with the cross-coupled active one in the passive switch-only rectifier, together with simple and effective control circuits, the proposed rectifier shows both good power extraction and power conversion capability. Based on 0.18 um CMOS technology, the simulated power efficiency of the proposed rectifier is 91%, and the output power is 144 uW with a 1 uF capacitor and a 95 kΩ load. The proposed active switch-only rectifier improves upon the extractable power and efficiency by 1.9 times and 1.5 times, respectively, compared to the conventional one; and improves upon the efficiency by 1.5 times compared with passive switch-only rectifier.

20 citations

Journal ArticleDOI
TL;DR: The proposed HR is shown to yield a significant improvement in power conversion efficiency (PCE) for low levels of input power when compared to a conventional CCCR that has been implemented on the same die.
Abstract: This paper presents a novel CMOS hybrid rectifier that can simultaneously and efficiently scavenge energy from a low-amplitude radio-frequency (RF) signal and a low-frequency, low-energy signal from a piezoelectric (PZT) transducer. The piezoelectric signal is used for biasing a complimentary, cross-coupled rectifier (CCCR) chain to an operating point such that the RF signal energy can be efficiently harvested, even if its amplitude is well below the threshold voltage (V TH ) of the rectifier transistors. The device sizes for the proposed design have been optimized to achieve the maximum DC output voltage and the proposed design is shown to effectively eliminate dead-zones in the rectifier response. The measurement results show that a 6-stage hybrid rectifier (HR) can generate up to 1 V DC output voltage at a load current of 3 μA when a 300 mV peak-to-peak, 13.56 MHz RF signal is applied in conjunction with a 10 KHz, 2 V piezoelectric signal. Using measured results from prototypes fabricated in a 90 nm CMOS process, the proposed HR is shown to yield a significant improvement in power conversion efficiency (PCE) for low levels of input power when compared to a conventional CCCR that has been implemented on the same die.

20 citations


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