Fast switching circuit for x-ray imaging applications

Details Fast switching circuit for x-ray imaging applications Fast switching circuit for x-ray imaging applications

2008-10-17

2010-06-22

Glick, Edward J (Department: 2882)

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

C378S091000, C378S101000, C378S112000, C378S114000

Reexamination Certificate

active

07742573

ABSTRACT:
A system is provided, which includes a rotatable gantry for receiving an object to be scanned. The system includes an x-ray source for projecting x-rays of two different energy levels towards the object and also a power supply, which energizes the x-ray source to two different voltage levels at a predetermined rate for generating x-rays at two different energy levels. The power supply in the system includes a fixed voltage source to input a voltage to a switching module with number of identical switching stages. Each stage in the switching module consists of a first switch, which charges a capacitor in a conducting state and output a first voltage, a second switch, which connects the fixed voltage source and the capacitor in series to output a second voltage in a conducting state and a diode which blocks a reverse current from the capacitor to the power supply.

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