Results 121 to 130 of about 266,617 (137)

On a DC free block modulation code

IEEE Transactions on Magnetics, 1984
A rate 8/10 modulation code, which is suitable for a recording channel with a transformer-coupled rotary head, is developed. The code has the following advantages. Because T_{\max} is short, overwrite noise, when it is overwritten, is small and the peak shift of the playback signal is also small. Disturbance of recording current caused by low frequency
T. Furukawa, M. Ozaki, K. Tanaka
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Design Equations for Symmetric Microstrip DC Blocks

IEEE Transactions on Microwave Theory and Techniques, 1980
The design formulas are presented for achieving either a rippled or a maximally flat response of the dc blocks built with symmetrical coupled microstrip lines. The selection of characteristic impedances of the odd and even modes is facilitated by the use of a universal diagram containing the equicontours of the standing wave ratio and of the band-width.
D. Kajfez, B.S. Vidula
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Analog Building Blocks of DC-DC Converters Slides and Transcript

2020
Abstract: System behavior and performance of power management strongly depend on the implementation at the circuit level. This tutorial covers the design of DC-DC converter building blocks such as power switches, gate drivers and their supply, level shifters and error amplifiers, as well as control-loop and current-sensing techniques.
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Design of Miniaturized Symmetric Microstrip DC Block

2007 Asia-Pacific Microwave Conference, 2007
This paper suggests DC blocks that have the length of one-eighth wavelength. The miniaturized dc block is completed by that gap of coupled line is reduced to increase an amount of coupling. These dc blocks not only suppress harmonics but also their sizes are smaller than general dc blocks. To verify performance of the miniaturized dc blocks, several dc
Se-Hwan Choi, Jae-Young Lee, Kyu-Bok Lee, Dong-Hyup Shin   +3 more
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Octave-Band Microstrip DC Blocks (Short Papers)

IEEE Transactions on Microwave Theory and Techniques, 1972
The design of octave-bandwidth microstrip interdigital dc blocks is presented. Data for a 7.75- to 16.3-GHz design are given and correlated with an approximate equivalent circuit based on even and odd mode propagation in coupled microstrip. Additional data are tabulated reflecting the ability to shift the frequency band of operation.
D. Lacombe, J. Cohen
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Impedance-Transforming Symmetric and Asymmetric DC Blocks

IEEE Transactions on Microwave Theory and Techniques, 2010
Design formulas of symmetric and asymmetric dc blocks are presented for achieving Chebyshev and Butterworth frequency responses. They can also be used for impedance transformers. Design formulas of symmetric dc blocks are first derived and those of asymmetric dc blocks are also computed based on the symmetric ones.
Hee-Ran Ahn, Tatsuo Itoh
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Microstrip quarter-wave high voltage DC block

IEEE Transactions on Microwave Theory and Techniques, 1993
A microstrip high voltage DC block is presented. Silicon rubber is used to insulate a quarter-wave coupler and the resulting effective dielectric constant and impedance are discussed. DC isolation up to 4500 V is achieved. >
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A Modular MMC Based DC-DC Converter with DC Fault Blocking Capability

2022 IEEE 7th Southern Power Electronics Conference (SPEC), 2022
Viktor Hofmann, Patrick Hofstetter
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3 dB, 90°, DC Block Directional Coupler

1988 18th European Microwave Conference, 1988
The circuit equivalence between coupled-line structures and single-line structures is used to represent the four branches of the branchline directional coupler by means of coupled lines. A new type of directional coupler results (**), in which all the four ports show DC isolation between them. It can be utilized, with no design impairments, up to above
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The DC arc in a blocked nozzle

Journal of Physics D: Applied Physics, 1979
The boundary layer integral method of analysis has been used to study the DC arc burning in the convergent-divergent nozzle of a gas blast circuit breaker. A particular case where the arc completely 'fills' the nozzle has been studied, since it is of special interest to designers of nozzles for circuit breakers.
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