Effects of a Pulse-Forming Network Operating into a Non-Linear Load.
Abstract
The power modulator of an electron-beam gun was computer modeled to investigate the performance of a pulse-forming network (PFN). The PFN was designed for a constant matched load but operated into non-linear load. The power modulator's operation consisted of: pulsing the electron-beam gun's cathode to a negative 220KV, thru a pulse transformer, by a 50KV hard-tube pulser, this pulser was switched by four parallel power triodes, which were driven by a line type pulser or PFN. The triodes, the PFN's load, exhibited a non-linear impedance dependent on their grid and plate voltages. The computer model was used to examine the effects of the non-linear load of the power tubes on the PFN. The PFN as constructed in four; 12KV, 10 sec modules. It was possible to add or remove these modules from the PFN to change the pulse width in 10 sec steps. This modular PFN design was first investigated using a digital computer model and then built and tested for a constant load. Then the effect of operating into a non-linear was examined by modeling the PFN within the power modulator. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 15, 1981
- Accession Number
- ADA100797
Entities
People
- Edward Jacob Keefer Jr
Organizations
- Air Force Institute of Technology