Patent ID: 6175222
Filing Date: 2001-01-16
Classification: G05F

Abstract:
A solid-state high voltage regulator circuit for supplying a regulated voltage to a load, the solid-state high voltage regulator circuit comprising:(a) an output terminal coupled to the load;(b) a high voltage generator having a first lead and a second lead, the first lead being coupled to the load, wherein the high voltage generator is configured to generate a high voltage between the first and second leads;(c) a voltage divider coupled to the output terminal, wherein the voltage divider is configured to provide a stepped-down voltage indicative of a voltage at the output terminal;(d) an error amplifier coupled to receive the stepped-down voltage and a reference voltage, wherein the error amplifier is configured to generate a control signal indicative of a difference in level between the stepped-down voltage and the reference voltage; and(e) a regulator stage having a control lead coupled to the error amplifier, having an input lead coupled to the second lead of the high voltage generator and having an output lead coupled to a ground terminal, wherein, in response to the control signal, the regulator stage is configured to adjust a regulator current flowing between the input and output leads of the regulator stage, thereby causing a voltage across the regulator stage to be correspondingly adjusted so that the voltage between the output and ground terminals is maintained at a desired preselected level.