Protective circuit for X-ray generator
December 22, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3567940 X-Ray diagnostic generator comprising an inverter supplying the high voltage transformer X-Ray diagnostic generator for operation with falling load X-Ray diagnostic generator with an inverter supplying the high voltage transformer X-ray diagnostic generator Electron emission regulator for an x-ray tube filament Current sourced inverter with saturating output transformer X-ray tube anode voltage compensator Low ripple regulated X-ray tube power supply Multiple voltage x-ray switching system InventorsAssigneeApplicationNo. 06/564603 filed on 12/22/1983US Classes:378/118, Tube overload378/105, High frequency378/112AutomaticExaminersPrimary: Church, Craig E.Attorney, Agent or FirmInternational ClassesH05G 1/54 (20060101)H05G 1/32 (20060101) H05G 1/00 (20060101) AbstractAn inverter receives a d.c. voltage and delivers to an X-ray tube, by way of a high-voltage transformer, filter, and rectifier, a high-voltage d.c. output. The inverter is driven in response to control signals which are responsive to the difference between a voltage demand signal and a voltage feedback signal. The control signals are also responsive to various status conditions of the system which are monitored by a microprocessor. Inputs to the microprocessor include various signals which are indicative of voltage or current conditions. In this way, such conditions as an over-voltage at the output, an unbalance between the anode and cathode with respect to ground, or an excessive current flow are detected and precautionary measures are quickly taken to prevent further damage to the system.Other References
| |
