Low ripple regulated X-ray tube power supply
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United States of America Patent
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Sep 21, 1982
Grant Date -
N/A
app pub date -
Jul 14, 1980
filing date -
Jul 14, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A low ripple high voltage power supply is disclosed for use in a dental X-ray system, utilizing a rectifier and regulator circuit to provide a low voltage regulated DC signal, a DC-AC converter for providing a high frequency chopped power signal suitable for efficient transformation to a high voltage, followed by a multiplier for generating the final high voltage signal to be applied to the X-ray tube. A high frequency clock circuit is used for driving the converter and also for controlling logic circuitry used to develop the regulator control signals. Both a voltage and a current control loop are utilized in the regulator control, and the tube anode current and filament current are controlled as a function of sensed anode current.
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