Discharge circuits and loads Page: 28 of 62
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DISCHARGE CIRCUITS AND LOADS
FIGURE 10: HY-5301 THYRATRON MODEL AND TRIGGER CIRCUIT INITIAL CONDITIONS
System Initial Conditions
Vbias -50 kV
V0 = +50 kV
CL 1 pf and 50 pf: Load shunt capacitance
Use thyratron model: For HY-5301 tube
-q - --,4 - V(t) +
/ Tube Drop
-(t-to3/ 150 when fully
V(t) - -(5O,() e R +150 conducting
V = 50,000 * peak voltage across tube
20 nH * tube inductance
to time at which perfect switch is instantly closed
F resistive phase time for thyratron
10 ns Note: For conventional tubes
3z T, y 40 ns resulting in some
risatime degradation time
where: is 1/e time
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Sarjeant, W.J. Discharge circuits and loads, report, October 15, 1980; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1061299/m1/28/: accessed April 25, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.