A PWM/PFM Dual-Mode DC-DC Buck Converter with Load-Dependent Efficiency-Controllable Scheme for Multi-Purpose IoT Applications

Kim, Myeong Woo; Kim, Jae Joon

doi:10.3390/en14040960

Cited by 12 publications

(8 citation statements)

References 35 publications

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“…Its adaptive PFM mode continuously adjusts based on the peak inductance and output voltage ripple, resulting in high conversion efficiency under light loads. However, it has a limited supported load range and may not be suitable for a wide range of applications [48]. The main performance specifications of the power control chips mentioned above are summarized in Tab.…”

Section: Fpgamentioning

confidence: 99%

Review on the Research Progress of Arc Plasma Power Sources in China

Jin,

Li,

Jiang

et al. 2023

IEEE Access

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Arc plasma, characterized by its high current density, high energy concentration, and elevated gas enthalpy, is widely utilized in fields such as metallurgy, chemical industry, energy and environmental protection, as well as aerospace. Plasma treatment of solid waste is one of the advanced environmental protection technologies at the international forefront. The rapid development of plasma technology has led to continuous updates and upgrades of arc plasma power sources. This paper provides a comprehensive review of the research progress in arc plasma technology in China, with a particular focus on two key aspects: structure and control methods. The objective is to provide a novel perspective and insights for the international academic community, thereby driving further development in the field of arc plasma power sources. Furthermore, it discusses and analyzes the future development of arc plasma power sources with a focus on achieving higher system reliability, increased power output, environmentally friendly solutions, and intelligent operation.

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Section: Fpgamentioning

confidence: 99%

Review on the Research Progress of Arc Plasma Power Sources in China

Jin,

Li,

Jiang

et al. 2023

IEEE Access

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“…It offers simplicity, a relatively low noise level, and a faster response controller than other controllers employed in converter applications [7]. These characteristics are good options for a remote seismic node due to the low noise exhibited in the energy harvesting system.…”

Section: Ba 13mentioning

confidence: 99%

Optimal Photovoltaic Energy Harvesting System at Remote Seismic Node

Duncan

Zungeru

Mangwala

et al. 2021

Preprint

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We have developed an optimal Photovoltaic Energy Harvesting System at the remote seismic node to sustain the remote seismic node. This node is a continuous application for monitoring the geodynamics of the earth for long-term and persistent. However, due to the constraints of solar cells and low funding of seismic installations, a simple and optimal energy harvesting system is required at the remote seismic node. So, this novel design focuses on using fitting curve equations as models to extract parameters of the photovoltaic module. This is to predict instantaneous duty cycle levels across synchronous buck DC-DC converter for optimal energy conversion. The converter regulates the supercapacitor as energy storage to deliver longer runtime at the remote seismic node. The conventional techniques concentrate on improving the hardware and charging to sustain power at the remote seismic node. Yet, energy is lost by the DC-DC converter, and the lead-acid battery usually used exhibits energy leakage and a shorter lifecycle. Thus, the contribution of this work is to design a relatively less computational maximum power point tracking based on a simple curve fitting technique to sustain the lifecycle of the node. In this proposed design, selected light-dependent resistors to mimic a pyranometer and formulate equations from specific photovoltaic module characteristics are considered. This correlates the optimal duty cycle levels with the ambient irradiance and temperature variables, while validation was done with an experimental setup of Computer Controlled Photovoltaic System. The non-linear characteristics relationship between the irradiance, temperature, and voltage levels is linearized with the selected PV module parameters in curve fitting equation models. These models are implemented in C programming as an algorithm to be processed by 8-bit microcontroller and deliver duty cycle levels across pulse width modulation to drive the converter. The performance of our approach is evaluated with the Computer Controlled Photovoltaic System with a deviation between 2.5 % to 5 % based on tabulated results and graphs.

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“…Los tipos de modulación por pulsos se pueden dividir entre modulación por ancho de pulso (PWM, de Pulse Width Modulation), y modulación por frecuencia de pulso (PFM, de Pulse Frequency Modulation). Ambos tipos se pueden encontrar combinados en el estado de la técnica para mejorar las prestaciones de algunas topologías [42], [43].…”

Section: Modulación Por Pulsosunclassified

Non-inverting and Non-isolated Magnetically Coupled Buck–Boost Bidirectional DC–DC Converter

Rodriguez-Lorente

Barrado

Calderón

et al. 2020

IEEE Trans. Power Electron.

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Quiero agradecer tanto, por tanto, y a tanta gente, que no me va a quedar más remedio que escribir algo de todo ello en este apartado, aunque por lo que dice la plantilla oficial no sea obligatorio.No hay "en primer lugar" en mis agradecimientos, así que podéis leerlos en cualquier orden. Si no os encontráis en alguno de ellos, tened claro que es despiste mío porque estar, estáis.Gracias a todos los profesores, en general. En particular, gracias a los profesores del GSEP por acompañarme en mi periplo, compartir vuestra experiencia y vuestros chistes. En especial, a mi tutor, Andrés, por darme la oportunidad de unirme al grupo, por acogerme, enseñarme, guiarme y tenerme paciencia.Gracias a mis compañeros-amigos de la universidad. Gente genial, rara, divertida y entrañable, que tiene la habilidad de hacer que una bola de estrés se deshaga en cuestión de minutos. De eso y de que considere tomar café antes que agua.

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A PWM/PFM Dual-Mode DC-DC Buck Converter with Load-Dependent Efficiency-Controllable Scheme for Multi-Purpose IoT Applications

Cited by 12 publications

References 35 publications

Review on the Research Progress of Arc Plasma Power Sources in China

Review on the Research Progress of Arc Plasma Power Sources in China

Optimal Photovoltaic Energy Harvesting System at Remote Seismic Node

Non-inverting and Non-isolated Magnetically Coupled Buck–Boost Bidirectional DC–DC Converter

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