| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high voltage switch circuit which allows a compact structure and reduction of power consumption as well as sufficient reduction of exposure, and an X-ray pulse generator using this circuit. <P>SOLUTION: A high voltage switch circuit 6 comprises: a first semiconductor switch circuit S1 composed of a pulse transformer PTR1 to which an AC signal is inputted at its primary side, a gate drive circuit GD1 connected to the secondary side of the transformer, and a semiconductor switch Sw1 which is on-off controlled by the drive circuit; and second to n-th semiconductor circuits Sn which are sequentially connected to the semiconductor switch circuit in series and having the same structure as the semiconductor switch circuit. The secondary sides of the pulse transformers in the first to (n-1)th semiconductor switch circuits are connected to the primary sides of the pulse transformers in the second to n-th semiconductor switch circuits, respectively, and the semiconductor switches in the first to n-th semiconductor switch circuits are synchronously on-off controlled by the gate drive circuit based on an AC signal. <P>COPYRIGHT: (C)2013,JPO&INPIT |
