Zobrazeno 1 - 10
of 75
pro vyhledávání: '"M.J. Lazarus"'
Publikováno v:
IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications. 47:528-535
Pulsed phototransistor switches using profiled optical drive have been extended to control power transistors. The principle has been tested using the criterion of switching several hundreds of watts. With low-cost LEDs and phototransistors for the op
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dcfe55ea21151b675237e13d0a3a9db
https://doi.org/10.1109/81.841854
https://doi.org/10.1109/81.841854
Autor:
M.J. Lazarus, R.W. Price
Publikováno v:
Solid-State Electronics. 41:1251-1255
This paper presents techniques for approaching the ideal theoretical waveform for switching phototransitors. Switch times of 150–250 ns have been achieved, in contrast with usual times of several microseconds. The ultimate possibilities are discuss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f79a12d2f9ddc59a871f9d8f50f3c90e
https://doi.org/10.1016/s0038-1101(97)00078-6
https://doi.org/10.1016/s0038-1101(97)00078-6
Autor:
M.J. Lazarus
Publikováno v:
Solid-State Electronics. 38:351-355
This paper discusses the implications of preliminary experimental demonstrations of improved switching of bipolar transistors obtained by profiling the base current drive waveform. In this way the idealised limits of switching time in terms of transi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a426323310a7a3b09d44932f55338a6
https://doi.org/10.1016/0038-1101(94)00085-t
https://doi.org/10.1016/0038-1101(94)00085-t
Autor:
J. Wilkes, M.J. Lazarus
Publikováno v:
IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications. 41:662-665
A method for switching MOS-bipolar transistor hybrids has been developed, which improves the transition performance and minimises the base drive power requirements in a split Darlington configuration with low on-state voltage. The type of wave shapin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a5f15379a76623e5157482701f73423
https://doi.org/10.1109/81.329726
https://doi.org/10.1109/81.329726
Publikováno v:
IEEE GLOBECOM 1998 (Cat. NO. 98CH36250).
The quasi-optics of mm waves have been investigated in the context of reflection by typical wall materials. The Brewster angle phenomenon is prominently manifest when the magnetic vector is parallel to the surface. Even the complex structure of mater
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63f9ec4b702195e1b5f854fa3f9ed442
https://doi.org/10.1109/glocom.1998.776861
https://doi.org/10.1109/glocom.1998.776861
Autor:
M.J. Lazarus, K.V.O. Rabah
Publikováno v:
IEEE Electron Device Letters. 13:120-122
A robust transistor configuration is described for high-frequency pulse operation of fluorescent lighting, eliminating the need for clamping diode wastage of the turn-off spike energy, and facilitating the use of ferrite yoked autotransformers to cou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d12e63c707de2e08d0c7edc2fe504fc9
https://doi.org/10.1109/55.144978
https://doi.org/10.1109/55.144978
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 23:700-703
A method for estimation of FM bias modulation sensitivity of a Gunn-diode oscillator is presented under the assumption of incomplete domain formation for a very short diode. Experimental measurements at 33 and 11.3 GHz are shown as compared with this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83ba897494d16fb1793c457883e38e9a
https://doi.org/10.1109/tmtt.1975.1128651
https://doi.org/10.1109/tmtt.1975.1128651
Autor:
null Weng Cho Chew, J. Citerne, B.N. Das, J.B. Davies, G.J. Dolan, P. Gelin, A. Gopinath, I. Gupta, K. Hatori, K.K. Joshi, K. Kobayashi, null Jin Au Kong, M.J. Lazarus, R.A. Linke, A. Lipparini, N. Miki, D. Mirshekar-Syahkal, N. Nagai, Y. Nemoto, F.R. Pantoja, A. Paul, M. Petenzi, S.R. Seshadri, null Soon Yun Poh, J.S. Rao, G.P. Riblet, V. Rizzoli, I. Sakagani, R. Sato, G. Saulich, T.C.L.G. SoIlner, M.G. Somekh, D.S. Stone, null Ming-Chi Tsai, D.P. Woody
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 29:175-179
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e94b2c3c673f4c30c33ce9e0fbd5de72
https://doi.org/10.1109/tmtt.1981.1130320
https://doi.org/10.1109/tmtt.1981.1130320
Publikováno v:
Proceedings of the IEEE. 59:812-814
A sensitive millimeter wave receiver has been developed in which a single Gunn diode is employed both as local oscillator and mixer. The dynamic range can extend from well below 10 pW to well above 1 µW. Useful conversion gain is realized owing to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0665e46d74035b142e2e4249c8f489b
https://doi.org/10.1109/proc.1971.8263
https://doi.org/10.1109/proc.1971.8263
Publikováno v:
Proceedings of the IEEE. 64:1248-1249
Application of automatic frequency control (AFC) to regulate the spectrum of an injection-driven oscillator is reported. This technique can eliminate noisy asymmetrical multiple sidebands. It is shown that the AFC loop changes the spectrmn to those l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::456c783030c20419dc292b3e757755a9
https://doi.org/10.1109/proc.1976.10299
https://doi.org/10.1109/proc.1976.10299