Power supply for a hot-filament cathode

Details Power supply for a hot-filament cathode Power supply for a hot-filament cathode

2005-06-28

2005-06-28

Dinh, Trinh Vo (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C363S132000

Reexamination Certificate

active

06911789

ABSTRACT:
In accordance with one embodiment of the present invention, there is provided a switch-mode power supply to generate the heating current for a hot-filament electron-emitting cathode. The power supply directly couples, without an output transformer, the output from a full-bridge converter that operates at an output frequency in the range from ten Hz to ten kHz. A connection to a reference potential that minimizes the potential fluctuation of the cathode is provided by one of the direct-current inputs to the converter.

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