On the Use of the Intrinsic Ripple of a Buck Converter for Visible Light Communication in LED Drivers

Loose, Felipe; Teixeira, Luciele Varaschini; Duarte, Renan R.; Costa, Marco A. Dalla; Barriquello, Carlos Henrique

doi:10.1109/jestpe.2018.2843280

Cited by 25 publications

(5 citation statements)

References 32 publications

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“…Couplers, amplifiers and auxiliary modulators are not necessary in this concept. In subsequent publications, additional types of power converters [22]- [26], various modulation schemes [27]- [31], coding aspects [29], [32], multiuser aspects [33], [34], voltage control [35] and further applications [36]- [38] have been investigated, and surveys & tutorial [39]- [41] have been conducted. The terms power talk and talkative power were coined independently of each other in [33] and [39], respectively.…”

Section: Tpc Primermentioning

confidence: 99%

STEM Learning Platform Exemplified by Talkative Power Conversion

Hoeher,

Homayounnasab,

Hansen

2024

Preprint

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This article presents a STEM learning platform focusing on renewable energy generation, energy storage, and simultaneous transmission of energy and data. These enabling technologies are classified already by teenagers as authentic, multidisciplinary, sustainable and future-oriented, which helps to stimulate their interest. Linking electric energy generation/storage/consumption and information transfer is done through the innovative concept of talkative power conversion. Students are not only provided with meaningful background information on the topics under investigation, but they also learn how to implement these concepts on a mixed hardware/software platform, which increases their motivation and understanding of STEM topics. The learning platform elaborated in this article is suitable for pupils at high school as well as undergraduate and graduate students in electrical engineering and related fields, since the level of difficulty is adjustable. Experiments are exemplified at a level suitable for undergraduate students in electrical engineering and information technologies after two years of study.

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Section: Tpc Primermentioning

confidence: 99%

STEM Learning Platform Exemplified by Talkative Power Conversion

Hoeher,

Homayounnasab,

Hansen

2024

Preprint

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“…Subsequently, we establish the Proportional (KP), Integral (KI), and Derivative (KD) constants using a systematic trialand-error approach. We then utilize the PWM generated by the photodiode sensors as the input for regulating DC LED lighting, effectively quantifying the emitted light intensity through digital sensors measured in lumens [16]. .…”

Section: Flowchartmentioning

confidence: 99%

Optimizing Light Intensity with PID Control

Alfian,

Ma'arif,

Chotikunnan

et al. 2023

Control Syst. Optim. Lett.

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Lighting is a fundamental cornerstone within interior design, possessing the capability to metamorphose spaces and evoke emotional responses profoundly. This principle applies to residential, industrial, and office domains, where lighting nuances are meticulously adjusted to enhance comfort and practicality. However, adequate luminance frequently intersects with energy wastage, often attributed to negligent light management practices. Mitigating this issue necessitates integrating light intensity controls adept at adapting to ambient luminosity and room-specific parameters. A prospective avenue encompasses incorporating a Proportional Integral Derivative (PID) control system synergized with light sensors. This research Implementing a closed-loop architecture, PID control utilizes feedback mechanisms to improve the precision of instrumentation systems. The PID methodology, consisting of Proportional, Integral, and Derivative control modalities, produces stable responses, accelerates system reactions, and diminishes deviations and overshooting by predetermined setpoints. The proposed Light Intensity Control System underpinned by PID methodology manifests as an exhibition of compelling outcomes drawn from empirical trials. The judicious selection of optimal parameters, specifically Kp = 0.2, Ki = 0.1, and Kd = 0.1, yielded noteworthy test outcomes: an ascent time of 0.0848, an overshoot of 6.5900, a culmination period of 0.4800, a settling period of 2.3032, and a steady-state error of 0.0300. Within this system, the PID controller assumes a pivotal role, orchestrating the regulation and meticulous calibration of light intensity to harmonize with designated criteria, thus fostering an environment of augmented energy efficiency and adaptability in illumination.Lighting is a fundamental cornerstone within interior design, possessing the capability to metamorphose spaces and evoke emotional responses profoundly. This principle applies to residential, industrial, and office domains, where lighting nuances are meticulously adjusted to enhance comfort and practicality. However, adequate luminance frequently intersects with energy wastage, often attributed to negligent light management practices. Mitigating this issue necessitates integrating light intensity controls adept at adapting to ambient luminosity and room-specific parameters. A prospective avenue encompasses incorporating a Proportional Integral Derivative (PID) control system synergized with light sensors. This research Implementing a closed-loop architecture, PID control utilizes feedback mechanisms to improve the precision of instrumentation systems. The PID methodology, consisting of Proportional, Integral, and Derivative control modalities, produces stable responses, accelerates system reactions, and diminishes deviations and overshooting by predetermined setpoints. The proposed Light Intensity Control System underpinned by PID methodology manifests as an exhibition of compelling outcomes drawn from empirical trials. The judicious selection of optimal parameters, specifically Kp = 0.2, Ki = 0.1, and Kd = 0.1, yielded noteworthy test outcomes: an ascent time of 0.0848, an overshoot of 6.5900, a culmination period of 0.4800, a settling period of 2.3032, and a steady-state error of 0.0300. Within this system, the PID controller assumes a pivotal role, orchestrating the regulation and meticulous calibration of light intensity to harmonize with designated criteria, thus fostering an environment of augmented energy efficiency and adaptability in illumination.

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“…compare ( 8) with (23) in the appendix. The output voltage is a function of the inductor current and thereby indirectly also a function of the data sequence:…”

Section: B Numerical Model Of the Output Waveform For Arbitrary Switching Signalsmentioning

confidence: 99%

Channel Coding and Receiver Design for Simultaneous Wireline Information and Power Transfer

Hoeher

Mewis

Liserre

2021

IEEE Open J. Power Electron.

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For the first time, the recently proposed "talkative power" paradigm combining power electronics and communication engineering is extended by channel coding and advanced receiver design aspects. In this concept, the pulses that control the duty cycle of switched-mode power converters are simultaneously used for data transmission by modifying the pulse phase, pulse frequency, pulse position or pulse width. The data sequence is embedded into the switching signal, similar to random modulation. The data can be used for example in point-to-point links, inside multi-port power converters, and for communication in networked power grids. As an application example a buck converter is studied. Its output voltage is numerically calculated for arbitrary two-level switching signals. The corresponding system model serves as a common framework for switching waveform design, receiver design, and performance analysis. The data sequence is represented by a small deterministic output voltage ripple. Various techniques to improve the data rate and the robustness of the communication are introduced, including line coding, a derivation of the optimum receiver in the sense of maximum-likelihood detection, and forward error correction coding as an option. Although emphasis is on a buck converter, the concept is applicable to other power converter topologies as well.

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On the Use of the Intrinsic Ripple of a Buck Converter for Visible Light Communication in LED Drivers

Cited by 25 publications

References 32 publications

STEM Learning Platform Exemplified by Talkative Power Conversion

STEM Learning Platform Exemplified by Talkative Power Conversion

Optimizing Light Intensity with PID Control

Channel Coding and Receiver Design for Simultaneous Wireline Information and Power Transfer

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