Title :
Comparison of large-signal behavior of control schemes for high-output voltage modular DC-DC converters
Author :
Al-Mothafar, M.R.D.
Author_Institution :
Dept. of Electr. Eng., Jordan Univ. of Sci. & Technol., Irbid, Jordan
Abstract :
The large-signal characteristics of a three-module DC-DC converter is investigated under two different current-mode control (CMC) schemes. The converter which is intended for high-voltage low-current applications consists of three identical buck-derived modules connected in series across a common load. The effect of varying the number of the series connected modules on the large-signal behavior, and the possibility of having an imbalance in the output voltage level of the modules are also addressed. Averaged large-signal models are developed for both schemes and the results are compared with the more accurate pulse-by pulse-simulations using PSpice
Keywords :
DC-DC power convertors; control system analysis; electric current control; high-voltage techniques; modules; state-space methods; PSpice; buck-derived modules; current-mode control; high-output voltage DC-DC converters; high-voltage low-current applications; large-signal behavior; large-signal characteristics; large-signal models; pulse-by pulse-simulation; series connected modules; three-module DC-DC converter; Breakdown voltage; Control systems; Coupling circuits; DC-DC power converters; Filters; Inductors; Reliability; Semiconductor devices; Stress; Voltage control;
Conference_Titel :
Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on
Conference_Location :
Pafos
Print_ISBN :
0-7803-5682-9
DOI :
10.1109/ICECS.1999.814437
