Digital state controller for a high-voltage generator using...

Details Digital state controller for a high-voltage generator using... Digital state controller for a high-voltage generator using...

2007-01-23

2007-01-23

Vu, Bao Q. (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

C363S098000, C363S134000

Reexamination Certificate

active

10542132

ABSTRACT:
A description is given of a power supply unit, an X-ray device having a power supply unit, and a method of controlling a power supply unit. In order also to control non-linear control paths, such as of a power supply unit operated with mixed-mode modulation, it is proposed that the control device be designed as a digital control device which calculates at least one correcting variable. The control device processes at least a first actual value Uout, which depends on the output voltage. A time difference value is calculated from two sample values of the first actual value Uoutand is multiplied by a first controller coefficient Kout. The value of the first controller coefficient can in this case change as a function of the operating point of the power supply unit.

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J. Laeuffer, et al.; A Control Analysis and Closed-Loop Design for Serie-Parallel Resonant Converters; Sep. 1997; vol. 4 Conf. 7; pp. 4379-4384.

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