Results 261 to 270 of about 20,813,737 (316)
Some of the next articles are maybe not open access.
A High Power Welding Rectifier
Transactions of the American Institute of Electrical Engineers, 1934A welding rectifier embodying the ``ignitron'' principle, a recent development in a program of research on mercury arc rectifiers, provides predetermined welding currents for periods of time variable in steps of 20 sec, or less if desired. This paper describes the design and operation of the ``ignitron'' and illustrates its applicability to the ...
Daniel Silverman, J . H. Cox
openaire +1 more source
Soviet Physics Uspekhi, 1962
Electronic processes are used on an ever expanding scale in modern electrical engineering. Yet there is one field where electronics still finds little application. Indeed, electronic processes are widely used in measuring instruments (cathode ray oscillographs, photocells, high-frequency measuring devices, amplifiers, etc.), in cybernetics (automation,
openaire +1 more source
Electronic processes are used on an ever expanding scale in modern electrical engineering. Yet there is one field where electronics still finds little application. Indeed, electronic processes are widely used in measuring instruments (cathode ray oscillographs, photocells, high-frequency measuring devices, amplifiers, etc.), in cybernetics (automation,
openaire +1 more source
ESSCIRC 2008 - 34th European Solid-State Circuits Conference, 2008
An overview is presented of recent developments in the analog boundaries of the audio chain. The main focus is on class-D amplifiers that are by now almost standard in consumer applications and emerging in automotive and mobile applications as well. Further, an overview of the state-of-the-art in A/D and D/A conversion is given.
Marco Berkhout +2 more
openaire +2 more sources
An overview is presented of recent developments in the analog boundaries of the audio chain. The main focus is on class-D amplifiers that are by now almost standard in consumer applications and emerging in automotive and mobile applications as well. Further, an overview of the state-of-the-art in A/D and D/A conversion is given.
Marco Berkhout +2 more
openaire +2 more sources
High power asymmetrical thyristors
1985 IEEE Power Electronics Specialists Conference, 1985The power loss of fast speed thyristors is relatively high, especially for higher blocking voltage devices. High power asymmetrical thyristors will reduce the power loss up to 40%. In this paper we will discuss the newly developed high power asymmetrical thyristors and their trade-off.
C. K. Chu, Paul B. Spisak, D. A. Walczak
openaire +1 more source
IEEE Transactions on Microwave Theory and Techniques, 1961
The various circuit arrangements used in duplexers are analyzed in terms of their power-handling ability in two situations: first, where the bandwidth is narrow so that insertion loss determines maximum Q, and second, where large bandwidths are required and the maximum Q is determined by available Q band-width products.
openaire +1 more source
The various circuit arrangements used in duplexers are analyzed in terms of their power-handling ability in two situations: first, where the bandwidth is narrow so that insertion loss determines maximum Q, and second, where large bandwidths are required and the maximum Q is determined by available Q band-width products.
openaire +1 more source
High‐powered automobile stereos
Otolaryngology–Head and Neck Surgery, 1993We measured the owner‐adjusted acoustic outputs of 10 automobile stereo systems, with power ratings ranging between 150 and 600 watts. The sound levels ranged from 107 to 138 dB SPL and 84 to 108 dBA. Most of the high‐Intensity sound was in the 31, 62, and 125 Hz center‐frequency octave bands.
K L, Ramsey, F B, Simmons
openaire +2 more sources