Method modular power supply for x-ray tubes and method thereof

Details Method modular power supply for x-ray tubes and method thereof Method modular power supply for x-ray tubes and method thereof

2006-01-26

2010-11-09

Laxton, Gary L (Department: 2838)

Electric power conversion systems

Current conversion

Having plural converters for single conversion

C363S017000, C363S021020

Reexamination Certificate

active

07830685

ABSTRACT:
A power supply power supply (30) comprising a DC voltage supply, a control unit and a plurality of high voltage channels (33a-33d) is suggested. Each high voltage channel (33) includes an inverter (IKTV), a resonance circuit, a transformer (TR), and a rectifier (RECT). The resonance circuit cooperates with the inverter (INV). The inverter (INV) is formed by a first switching unit and a second switching unit whereby a voltage of a first polarity can be applied to the resonance circuit in a first switching state, whereas a voltage of a second polarity can be applied to the resonance circuit in a second switching state. The switching states can be switched by the control unit in such a manner that in a first mode of an operation for high output power, the output power can be adjusted by changing the switching frequency in the range of the resonance frequency. In a second mode of operation for low output power, the output power can be adjusted by changing the duration of the switching state at an essentially constant switching frequency.

REFERENCES:
patent: 3477010 (1969-11-01), Nard
patent: 2002/0067631 (2002-06-01), Lunding et al.
patent: 2002/0070718 (2002-06-01), Rose
patent: 050019091 (1973-06-01), None
patent: 05029091 (1993-02-01), None
patent: 0137416 (2001-05-01), None

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