| 摘要 |
The invention relates to converters operating in hyporesonant mode, and including four switches assembled in pairs. The invention resides in the fact that the output voltage (Vs) of the converter is altered by altering the quantity of electricity (Q') contained in each alternating pulse, this alteration being obtained by delaying, by a variable value ( THETA 1), the closure signal (Cd2 2) of one switch of a pair of switches with respect to the associated switch of the other pair. This results in a current I'1 of lower average value than in the absence of this delay, and thus a weaker charge (Q'), which leads to a lower variation ( delta Vs) of Vs. The invention is applicable to the high-voltage power supply for X-ray tubes. <IMAGE>
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