Patent ID: 6724196
Filing Date: 2004-04-20
Classification: G05F,Y10S

Abstract:
A temperature controlled high voltage regulator for an attached radiation detector having an input voltage, an output voltage, and a dc reference voltage, said regulator comprising:a) a temperature sensor for measuring ambient air temperature; b) a sensing diode amplifier connected to said temperature sensor for providing a constant current through said temperature sensor; c) a dc voltage reference amplifier connected to said sensing diode amplifier for boosting said dc reference voltage; d) a temperature reference amplifier for providing a temperature-proportional reference voltage for a connected error amplifier through said dc voltage reference amplifier, said connected error amplifier providing an amplified error signal for reading feedback voltage; e) a current controlled voltage attenuator connected to said error amplifier for regulating said output voltage to said attached radiation detector; f) a high voltage input and output sensor circuit for measuring said input and output voltages, said high voltage input and output sensor circuit including two hi-Z input buffer amplifiers for buffering said high voltage input and output sensor circuit from loading effects and for adjusting any feedback voltage; and g) a difference amplifier connected to said error amplifier for providing a ground referenced feedback voltage to said error amplifier.