Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1993-06-04
1995-02-21
Sterrett, Jeffrey L.
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
378112, H05G 132
Patent
active
053919777
ABSTRACT:
A high-voltage power supply and regulator circuit for an X-ray tube which utilizes solid-state switching devices with feed-back control for real-time monitoring and protection against voltage spikes. More specifically, the regulator circuit utilizes a feedback control loop and a series of FET to produce a continuous or pulsed output of predetermined duration and/or amplitude. Shielded voltage dividers are provided to accurately measure the voltage output and produce feedback control signals. The shielded voltage divider includes a plurality of paired conductive members disposed along the length of a resistor, which paired conductive members separate the resistor into separate portions and provide alternating first and second pairs of conductive members along the length of the resistor. Still further, a capacitor series is provided, with each capacitor connected between adjacent first and second pairs of conductive members, and wherein the dynamic impedance of the capacitor series is less than the dynamic impedance of the resistor.
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Electromed International
Sterrett Jeffrey L.
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