UDC 621.38
FEATURES OF POST-DISCHARGE PROCESSES IN A DIODE AT THE STAGE OF DISCHARGE EXCITATION PULSE DECAY
M. V. Lenkov, Ph.D. (Tech.), associate professor, head of the department, department of automation of information and technological processes, RSREU named after V.F. Utkin, Ryazan, Russian
orcid.org/0000-0002-9553-2047, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
E. V. Tinina, Ph.D. (Tech.), Assistant professor, Associate Professor, Department of Automation of information and technological processes, Ryazan State Radio Engineering University named after V.F. Utkin, Ryazan, Russian Federation,
orcid.org/0000-0001-6846-4192, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
From a practical point of view, a number of gas-discharge devices make the important case when the recovery of reverse voltage occurs with a delay due to the phenomenon of excessive post-discharge conductivity, which is associated with reverse current flow. The paper analyzes the features of post-discharge processes during the restoration of reverse voltage at diode anode with an incandescent cathode at the cut-off stage of excitation pulse. The processes at the initial stage of pulse cutoff are considered simultaneously with the effect of reverse current on the duration of voltage recovery at the anode. The analysis is carried out with the diffusion mechanism of plasma decay. In the course of the work, an expression of particle flow to the anode at the initial stage of post-discharge processes was obtained, a connection between reverse current to the anode and the duration of excitation pulse cutoff was established. The duration of delay in restoring the reverse voltage at diode anode in the case of excessive post-discharge conductivity was also estimated.
Key words: : diode, plasma, decay, current, anode, voltage, recovery, conductivity, delays, duration.