Ripple steering AC-DC converters to minimize input filter

Chou, E.Y.; Chen, Fanglin; Adragna, Claudio; Lu, Biao

doi:10.1109/ecce.2009.5316572

Cited by 14 publications

(6 citation statements)

References 2 publications

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“…1. The "zero-ripple" benefit of the coupled-inductor filter has numerous applications including renewable-energy systems [64], dc distribution systems [57], high-bandwidth audio amplifiers [65], and ac-dc converters for consumer electronics [49] to name a few. Moreover, the coupled-inductor filter also can be used to improve the performance of other components by canceling lead inductance [52], can be automatically tuned to ensure the notch frequency stays aligned with the switching frequency of the converter [53], or even in applications of signal processing, which take advantage of the group delay properties (not discussed in this paper) [66].…”

Section: Discussionmentioning

confidence: 99%

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Coupled-Inductor Filter: A Basic Filter Building Block

Balog

Krein

2013

IEEE Trans. Power Electron.

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Coupled-magnetics and coupled-inductor filters provide smoothing in a power converter by steering ripple current away from the "quite port." While this concept is not new, topologies claiming to be "new" or "novel" continue to be reported in the literature, suggesting that the ripple-steering phenomenon may not be well understood to be a property of the filter block itself. This paper describes a general coupled-inductor filter block and presents a brief history of its application starting with the earliest known version of the circuit, which dates back to a 1923 patent application. The coupled-inductor circuit model is reviewed, starting with the basic topology and ideal circuit elements. Real circuit elements are then considered along with the effects of equivalent series resistance and other parasitic elements. A circuit-based filtering approach is used to emphasize the filtering aspect of the coupled inductor. It will be seen that the coupled-inductor filter can exhibit a low pass with notch frequency response. This provides the ability to achieve extra attenuation at a particular frequency, such as the converter switching frequency, which can reduce the overall filtering burden without adding extra inductive components. When the filter components are treated as a functional circuit group, instead of an interconnection of inductors and capacitors, the coupledinductor filter can be analyzed as a drop-in replacement wherever a smoothing choke would normally be used and does not depend on converter voltage waveforms. A topology transformation of thé Cuk converter shows that "zero ripple" in not a special property of the topology, but can be achieved using the coupled-inductor filter block.

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Section: Discussionmentioning

confidence: 99%

“…Although much of the recent interest in coupled inductors has been in dc-dc converters, the coupled-inductor filter has been reintroduced to steer ripple in an ac-dc rectifier [49] although without reference to this rectifier application for which it was originally proposed in the early 1920s [13]- [15].…”

Section: Literature Surveymentioning

confidence: 99%

Coupled-Inductor Filter: A Basic Filter Building Block

Balog

Krein

2013

IEEE Trans. Power Electron.

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“…The benefits of this approach are demonstrated by a two-phase boost converter design. A modified interleaved boost converter with a coupled inductor is also called as ripple steering technique which is also identified as coupled magnetic filters technique [11].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Current Control Techniques of AC-DC Interleaved Boost PFC Converter

Rexy¹,

Seyezhai²

2016

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This paper presents the comparison of various current control strategies employed for an interleaved power factor correction (PFC) boost converter for improving the power quality. The major control strategies discussed in this paper are: peak current control, average current control, hysteresis control, borderline current control and non-linear control. These strategies are implemented in MATLAB/SIMULINK and the performance of the proposed converter is compared under open loop and closed loop operation. From the results, the input current waveform was close to input voltage waveform implying improved power factor and reduced total harmonic distortion for nonlinear current control technique. Experimental results validate the proposed method.

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“…The ripple cancellation technique is a well known technique [Schutten03] [Kolar97] to obtain, theoretically, output (or input) zero current ripple. It has been applied to several topologies and applications, both in dc-dc [Martinelli91], [Hamill99], [Díaz09B], [Zhou12] and ac-dc [Chou09], [Barbosa01] conversion. The main advantage of this technique is the theoretical elimination, or a very high reduction in practice, of the output current switching ripple.…”

Section: State Of the Art On Ripple Cancelation Design And Applicationsmentioning

confidence: 99%

“…In [Barbosa01] it is used in a three-phase boost for the first stage of a front end converter for a distributed power system (DPS) application. In [Chou09] it is also proposed the use of the ripple cancellation network at the input of a boost converter to decrease the conducted noise and the stress on the capacitors of the converter in the first stage of an ac-dc converter for a LCD TV application. In these applications, the main focus is on the filter reduction due to the lower switching noise, but the bandwidth is decreased due to the implementation of the state of the art design of this technique.…”

Section: Applicationsmentioning

confidence: 99%

High Efficiency Envelope Amplifier based on a Ripple Cancellation Buck Converter. Design, Optimization and Integration in an EER RFPA

López¹

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Ripple steering AC-DC converters to minimize input filter

Cited by 14 publications

References 2 publications

Coupled-Inductor Filter: A Basic Filter Building Block

Coupled-Inductor Filter: A Basic Filter Building Block

Investigation of Current Control Techniques of AC-DC Interleaved Boost PFC Converter

High Efficiency Envelope Amplifier based on a Ripple Cancellation Buck Converter. Design, Optimization and Integration in an EER RFPA

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