Search Results - "Sankaran, V.A."

Role of the amplifying gate in the turn-on process of involute structure thyristors by Sankaran, V.A., Hudgins, J.L., Portnoy, W.M.

“…The switching characteristics of involute thyristors with and without the amplifying gate structure are discussed. The effects of peak gate currents (10-100 A)…”
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Can an AC (alternating current) electrical system replace the present DC system in the automobile? An investigative feasibility study. I. System architecture by Masrur, M.A., Sitar, D.S., Sankaran, V.A.

“…In the aerospace industry, the 400-Hz AC system replaced the DC system, and the latest trend in aerospace industry involves a combination of mixed AC and DC…”
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Thermal analysis of high-power modules by Van Godbold, C., Sankaran, V.A., Hudgins, J.L.

“…A highly descriptive method for displaying heat flow in power modules is presented. Heat flow is studied for three different transistor-stack types: direct…”
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Electrolytic capacitor life testing and prediction by Sankaran, V.A., Rees, F.L., Avant, C.S.

“…The aluminum electrolytic capacitor is widely used in various power electronic circuits and systems such as 3-phase PWM inverters. Its functions include, bus…”
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Can an AC (alternating current) electrical system replace the present DC system in the automobile? An investigative feasibility study. II. Comparison and tradeoffs by Masrur, M.A., Sitar, D.S., Sankaran, V.A.

“…For Part I see ibid., vol.47, no.3, p.1072-80 (1998). In Part I of this paper, the possibility of using an AC (alternating current) electrical system instead…”
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Power cycling reliability of IGBT power modules by Sankaran, V.A., Chen, C., Avant, C.S., Xu, X.

“…The goal of this study was to understand the power cycling reliability of IGBT power modules. These power modules are made up of multi-layer stacks and consist…”
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High-energy pulse-switching characteristics of thyristors by Sankaran, V.A., Hudgins, J.L., Portnoy, W.M.

“…Experiments were conducted to study the high energy, high di/dt pulse-switching characteristics of silicon controlled rectifiers (SCRs) with and without the…”
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Novel designs in power modules by Van Godbold, C., Sankaran, V.A., Hudgins, J.L.

“…This work is a brief comparison of the three different packaging technologies used in present-day power modules. Flux plots are used to diagnose the thermal…”
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A numerical approach based on transient thermal analysis to estimate the safe operating frequencies of thyristors by Sankaran, V.A., Hudgins, J.L., Rhodes, C.A., Portnoy, W.M.

“…The spatio-temporal distribution of temperatures in high-power SCRs used for switching high di/dt current pulses were simulated using the finite element method…”
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Power electronics in electric vehicles: challenges and opportunities by Xu, X., Sankaran, V.A.

“…The authors identify technical challenges in meeting customer's expectations and possible opportunities for power electronics in EV (electric vehicle)…”
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Transient thermal analysis of thyristors using finite element method by Sankaran, V.A., Hudgins, J.L., Rhodes, C.A., Portnoy, W.M.

“…The finite element method (FEM) was used to obtain spatial and temporal distribution of temperatures in high-power SCRs (silicon-controlled rectifiers) used…”
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High di/dt switching with thyristors by Hudgins, J.L., Sankaran, V.A., Portnoy, W.M., Marks, K.M.

“…Two types of involute-structured SCRs, one with the amplifying gate shorted to the pilot gate (shorted devices), and the other with a normal gate arrangement…”
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Thermal analysis of high power modules by Van Godbold, C., Sankaran, V.A., Hudgins, J.L.

“…A highly descriptive method for displaying heat flow in power modules is presented. Heat flow is studied for three different transistor stack types: direct…”
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A comparison of power module transistor stacks by Van Godbold, C., Sankaran, V.A., Hudgins, J.L.

“…This work presents an analysis of the effects of substrate and baseplate thermal conductivity on thermal resistance for three power module technologies: direct…”
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Repetitive switching using thyristors for high energy and high di/dt applications by Sankaran, V.A., Hudgins, J.L.

“…Repetitive switching characteristics of an involute structure SCR and an anchor structure GTO without an amplifying gate are discussed. A brief summary of the…”
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Comparison of GTOs and SCRs for high di/dt switching by Kennedy, C.E., Hudgins, J.L., Sankaran, V.A., Portnoy, W.M.

“…Tests performed on two different types of thyristors, involute structure silicon controlled rectifiers (SCRs) and anchor structure symmetric gate turn-off…”
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