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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Silicon controlled rectifiers and a new ignitron firing circuit using SCRs

Shah, Mahendra Jitendralal, January 1964 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1964. / eContent provider-neutral record in process. Description based on print version record. Bibliography: 1 l. at end.
2

A silicon-diode-bridge parametric amplifier for low frequencies

Sang, Marie Emmanuel Fok Ning Yow January 1962 (has links)
The varactor properties of silicon—diode rectifiers in the low-frequency region are investigated. A theoretical analysis of a two-diode bridge is made, and the results experimentally verified using a matched pair of these diodes and a pump frequency of 455 Kc. The theoretical transducer power gain is found to be a function of ( formula omitted). For the amplifier built, a transducer power gain of 12.6 db has been achieved with a bandwidth from 0 to 8 Kc. With the diodes placed in a thermostatically controlled oven, the d-c drift is ±30 µvper hour. The noise figure of the parametric amplifier bridge is about 3 db. A study of possible sources of noise is made. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate
3

A DC voltage regulated, controlled current PWM rectifier /

Dixon, Juan W. (Juan Walterio) January 1986 (has links)
No description available.
4

An analysis of copper-oxide rectifier circuits

Huss, Paul Oswald, January 1900 (has links)
Thesis (SC. D.)--University of Michigan, 1935. / "Reprint from Electrical engineering ... March 1937." Includes bibliographical references (p. 8).
5

Polarizaiton in the aluminium rectifier ...

Greene, Clarence Wilson, January 1900 (has links)
Abstract of Thesis (Ph. D.)--University of Michigan, 1912. / Cover title. "Reprinted from the Physical review, n.s., vol. 111, no. 4, April, 1914."
6

Polarizaiton in the aluminium rectifier...

Greene, Clarence Wilson, January 1900 (has links)
Abstract of thesis (Ph. D.) -- University of Michigan, 1912. / Cover title. "Reprinted from the Physical review, n.s., vol. 111, no. 4, April, 1914."
7

Design of a full-wave positioning system using silicon controlled rectifiers

Mierendorf, Robert Earl. January 1963 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1963. / eContent provider-neutral record in process. Description based on print version record. Bibliography: l. 76-77.
8

Noise in the tunnel diode

Turner, Barry Earl January 1962 (has links)
To date, measurements of tunnel diode noise have dealt mainly with the negative conductance region, because the tunnel diode is an active circuit element only in this region. The noise has not been measured for reverse or near-forward biases due to the difficulties involving excessively low diode impedances in these regions. The purpose of this thesis is to show that, from the Esaki formulation for the direct-tunneling currents of a tunnel diode, in the bias regions where the electronic bands overlap, a simple theory can be developed relating the power spectrum associated with the direct-tunneling current noise to the direct current passing through the diode. This theory assumes that the two oppositely-flowing direct-tunneling currents in the Esaki junction are uncorrected and that both contribute full shot noise. The theory can be critically tested only in the bias regions where the noise is yet unstudied, and at sufficiently high frequencies that no contaminating 1/f noise exists. These conditions have been met experimentally and the noise measured quantitatively over the entire reverse and near-forward regions at a frequency of 4 Mc/s. Impedance-transforming networks and a very low-noise preamplifier suitable to the particular source strengths and impedances presented by the tunnel diode are developed for these measurements. A noise measurement technique is chosen from among several possible ones for the high degree of accuracy and smallest dependence on a good noise figure required for the tunnel diode source. The experimental results agree with the theory and vindicate the usual assumption that the two oppositely flowing direct-tunneling electron currents between two bands of a degenerately-doped semiconductor are uncorrelated. Noise measurements in the "valley" and far-forward region of the tunnel diode characteristic, where the diode current is not due to direct tunneling, do not agree with the simple two-current shot noise theory for direct-tunneling electron currents. Possible reasons for the enhanced noise measured in this region are advanced in the form of two models based on indirect-tunneling electrons via traps as the most important mechanism describing the excess or valley current. These models offer a possible explanation of the observed phenomena, but noise measurements alone appear insufficient to demonstrate unambiguously the detailed mechanisms producing either the excess current or the associated enhanced noise found throughout the valley and far-forward regions. / Science, Faculty of / Physics and Astronomy, Department of / Graduate
9

A DC voltage regulated, controlled current PWM rectifier /

Dixon, Juan W. (Juan Walterio) January 1986 (has links)
No description available.
10

New generation three-phase rectifier : a thesis presented for the degree of Doctor of Philosophy in Electrical and Electronic Engineering at the University of Canterbury, Christchurch, New Zealand /

Phipps, William Stanley. January 1900 (has links)
Thesis (Ph. D.)--University of Canterbury, 2008. / Typescript (photocopy). "July 2008." Includes bibliographical references. Also available via the World Wide Web.

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