Methods for reducing the forward voltage drop in pseudospark switches

V. D. Bochkov, V. M. Dyagilev, V. G. Ushich, O. B. Frants, Yu D. Korolev, I. A. Shemyakin, V. G. Geyman, R. V. Ivashov, N. V. Landl, K. Frank, M. Iberler, J. Urban

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The paper describes the methods, which can be used in the pseudospark switches to decrease the forward voltage drop in initial glow stages of the discharge burning. The main direction of reducing the discharge burning voltage is a use of a special design of the electrode system and a special design of the cathode cavity. In the switches TPI so-called high-emissivity cylinder is placed at the bottom of the cathode cavity. The basic component of the cylinder is the powder tungsten (90 per sent) to which aluminium oxide and caesium carbonate are added. Thus, this composite material contains caesium, which plays the principal part in decreasing the discharge burning voltage. Correspondingly, the decrease in the forward voltage drop allows the switches TPI to commute the anode voltage starting from 1 kV. In the switches TDI an idea of artificial initiation of the cathode spot is used. This can be achieved due to a special trigger circuit. Then the forward voltage drop is decreased to 200 - 300 V.

Original language	English
Title of host publication	IEEE Conference Record of Power Modulator Symposium
Editors	L. Gordon
Pages	479-482
Number of pages	4
Publication status	Published - 2002
Event	Conference Record of the Twenty-Fifth International Power Modulator Symposium and 2002 High-Voltage Workshop - Hollywood, CA, United States Duration: 30 Jun 2002 → 3 Jul 2002

Other

Other	Conference Record of the Twenty-Fifth International Power Modulator Symposium and 2002 High-Voltage Workshop
Country	United States
City	Hollywood, CA
Period	30.6.02 → 3.7.02

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ASJC Scopus subject areas

Electrical and Electronic Engineering

Cite this

Bochkov, V. D., Dyagilev, V. M., Ushich, V. G., Frants, O. B., Korolev, Y. D., Shemyakin, I. A., ... Urban, J. (2002). Methods for reducing the forward voltage drop in pseudospark switches. In L. Gordon (Ed.), IEEE Conference Record of Power Modulator Symposium (pp. 479-482)

Methods for reducing the forward voltage drop in pseudospark switches. / Bochkov, V. D.; Dyagilev, V. M.; Ushich, V. G.; Frants, O. B.; Korolev, Yu D.; Shemyakin, I. A.; Geyman, V. G.; Ivashov, R. V.; Landl, N. V.; Frank, K.; Iberler, M.; Urban, J.

IEEE Conference Record of Power Modulator Symposium. ed. / L. Gordon. 2002. p. 479-482.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Bochkov, VD, Dyagilev, VM, Ushich, VG, Frants, OB, Korolev, YD, Shemyakin, IA, Geyman, VG, Ivashov, RV, Landl, NV, Frank, K, Iberler, M & Urban, J 2002, Methods for reducing the forward voltage drop in pseudospark switches. in L Gordon (ed.), IEEE Conference Record of Power Modulator Symposium. pp. 479-482, Conference Record of the Twenty-Fifth International Power Modulator Symposium and 2002 High-Voltage Workshop, Hollywood, CA, United States, 30.6.02.

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AU - Shemyakin, I. A.

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AB - The paper describes the methods, which can be used in the pseudospark switches to decrease the forward voltage drop in initial glow stages of the discharge burning. The main direction of reducing the discharge burning voltage is a use of a special design of the electrode system and a special design of the cathode cavity. In the switches TPI so-called high-emissivity cylinder is placed at the bottom of the cathode cavity. The basic component of the cylinder is the powder tungsten (90 per sent) to which aluminium oxide and caesium carbonate are added. Thus, this composite material contains caesium, which plays the principal part in decreasing the discharge burning voltage. Correspondingly, the decrease in the forward voltage drop allows the switches TPI to commute the anode voltage starting from 1 kV. In the switches TDI an idea of artificial initiation of the cathode spot is used. This can be achieved due to a special trigger circuit. Then the forward voltage drop is decreased to 200 - 300 V.

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