Continuous high d.c. voltage supply particularly for an X-ray em

Details Continuous high d.c. voltage supply particularly for an X-ray em Continuous high d.c. voltage supply particularly for an X-ray em

1986-02-10

1987-07-14

Wong, Peter S.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363132, H02P 1320

Patent

active

046806938

ABSTRACT:
A d.c. voltage is produced from a single-phase electric mains for supplying an X-ray tube. This supply is pulsed under the control of a synchronizing circuit with which it is further possible to adjust the duration of the operating pulses, as well as their phase blocking with respect to the mains. By acting in this way excessive current is not taken during the voltage troughs between two successive half-waves. The losses by the Joule effect in the mains are reduced and the quality of the pulsed high voltage is improved because of the increased stability. There is only a slight increase in the exposure time.

REFERENCES:
patent: 3539812 (1970-11-01), Johnson
patent: 4200795 (1986-04-01), Kawamura et al.
patent: 4227243 (1980-10-01), Gurwicz et al.
patent: 4301498 (1981-11-01), Farrer
patent: 4504895 (1985-03-01), Steigerwald
patent: 4525774 (1985-06-01), Kino et al.

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