Hybrid inductor for improving gain attenuation characteristics of a Pi filter circuit

Shimura, Kazuhiro; Sato, Masaru; Matsumoto, Tsutomu; Matsuoka, Toshifumi

doi:10.1016/j.egyr.2020.11.215

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…The PB incorporates an Electro-Magnetic Interference (EMI) filter to remove highfrequency noise from the 12 V DC input signal, providing a low-impedance path for the noise and allowing the desired signal to pass through with minimal attenuation. The filter consists of a Pi filter (see Figure 6) with two capacitors connected to the ground and an inductor connected between the two capacitors [10]. Two inductors connected between the power terminals and the inputs of the Pi filter are also included.…”

Section: Input High-frequency Filtermentioning

confidence: 99%

The Power Board of the KM3NeT Digital Optical Module: Design, Upgrade, and Production

Aiello,

Albert,

Garre

et al. 2024

Electronics

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The KM3NeT Collaboration is building an underwater neutrino observatory at the bottom of the Mediterranean Sea, consisting of two neutrino telescopes, both composed of a three-dimensional array of light detectors, known as digital optical modules. Each digital optical module contains a set of 31 three-inch photomultiplier tubes distributed over the surface of a 0.44 m diameter pressure-resistant glass sphere. The module also includes calibration instruments and electronics for power, readout, and data acquisition. The power board was developed to supply power to all the elements of the digital optical module. The design of the power board began in 2013, and ten prototypes were produced and tested. After an exhaustive validation process in various laboratories within the KM3NeT Collaboration, a mass production batch began, resulting in the construction of over 1200 power boards so far. These boards were integrated in the digital optical modules that have already been produced and deployed, which total 828 as of October 2023. In 2017, an upgrade of the power board, to increase reliability and efficiency, was initiated. The validation of a pre-production series has been completed, and a production batch of 800 upgraded boards is currently underway. This paper describes the design, architecture, upgrade, validation, and production of the power board, including the reliability studies and tests conducted to ensure safe operation at the bottom of the Mediterranean Sea throughout the observatory’s lifespan.

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Section: Input High-frequency Filtermentioning

confidence: 99%

The Power Board of the KM3NeT Digital Optical Module: Design, Upgrade, and Production

Aiello,

Albert,

Garre

et al. 2024

Electronics

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“…Other than good design practise, since there are voltagesensitive components (varactors, potentiometers) and low-power capability is a design goal, this is essential. With the chosen regulator, there are two filter capacitors at the input and output terminal, as advised by the device datasheet [29]. • Capacitors C6, C7 and the inductor L4 (shown in Figure 6(b)) have been added to the schematic as an extra level of redundancy.…”

Section: Development Of Schematic Capture and Pcb Designmentioning

confidence: 99%

Design of an Active-Loaded Differential Voltage-Controlled Oscillator (VCO) Using Double-Gate MOSFET

Pillay,

M. Srivastava

2023

IJETT

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A differential cross-coupled Voltage Controlled Oscillator (VCO) has been designed using the Double-Gate (DG) MOSFET for VHF applications. The DG MOSFET exhibits superior noise immunity with its high noise figure and is suitable for low-power, high-frequency applications. The proposed VCO has been designed using a differential topology with improved power consumption, design flexibility, and noise reduction. This also improves the high-frequency performance of existing differential amplifiers. Thereafter, the proposed VCO was compared with fabrication and design methods, particularly Silicon-based CMOS and Single-Gate (SG) MOSFET VCOs, as possible alternatives. Various printed circuit board (PCB) design practices were followed to minimise the noise and improve the overall efficiency of the circuitry. Key parameters for the analysis of this VCO are the output power, phase noise, and figure of merit, which have been realised as -2.91 dBm at peak and -69.79 dBc/Hz at 1 MHz, respectively. The power consumption of the designed VCO is 36 mW.

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“…where 𝑅𝑅 𝑡𝑡ℎ is the total thermal resistance of the inductor. 𝑅𝑅 𝑡𝑡ℎ includes [12]:  the thermal resistance between the core and the ambient  the thermal resistance between the conductor and the ambient  the conduction thermal resistance of the conductor and the radiation thermal resistance between the conductor surface and the core.…”

Section: Design Of the Inverter-side Inductor Of The Lcl Filtermentioning

confidence: 99%

Core losses analysis of the LCL filter inductor for SiC-based inverter

Martín-Arroyo¹,

Cañete²,

Ciudad³

et al. 2022

REPQJ

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The ability of SiC devices to switch at high speed allows increasing significantly the power density in both converters and passive components, reducing their required size. To mitigate harmonic injection form inverters into the grid, in order to comply with power quality standards, an accurate filter design is required. Given its excellent performance, an LCL filter is the configuration most suitable in grid-connected power converters. Several parameters must be considered when designing an effective LCL filter, and the inverter-side inductor assumes a special importance because of its relevance to suppress high frequency harmonic content at the inverter side. One of the most relevant issues to be considered in the process of designing the LCL filter is the evaluation of core losses in the inverter-side inductor, which will determine the final temperature of the inductor. This paper analyses the core losses of the inverter-side inductor of an LCL filter. The proposed method is based on the computation of the current harmonics generated by the inverter and on Steinmetz’s empirical equation. As a result, core losses calculated taking into account several carrier and sideband harmonics show good agreement with the experimental values. When current harmonics are estimated by simulation, as it is done in the proposed design procedure, results are less accurate, but precise enough for a design procedure.

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Hybrid inductor for improving gain attenuation characteristics of a Pi filter circuit

Cited by 5 publications

References 8 publications

The Power Board of the KM3NeT Digital Optical Module: Design, Upgrade, and Production

The Power Board of the KM3NeT Digital Optical Module: Design, Upgrade, and Production

Design of an Active-Loaded Differential Voltage-Controlled Oscillator (VCO) Using Double-Gate MOSFET

Core losses analysis of the LCL filter inductor for SiC-based inverter

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