US 6,686,710 B1 · Circuit and method for regulating current using autobias

Abstract

A circuit for regulating a signal, such as a cathode current. The circuit has an input stage for inputting a signal and for producing a sense signal based thereon. The circuit may input timing signals and have a first stage for comparing a first reference signal with the sense signal when a first timing signal indicates and for outputting a first correction signal based on the comparison. The circuit may have a second stage for comparing a second reference signal with the sense signal when a second timing signal indicates and for outputting a second correction signal based on the comparison. The circuit may further have elements for measuring a leakage signal in the input signal during a third time interval. In this embodiment, the first and second stages are further for subtracting the leakage signal from the sense signal prior to the comparisons.

Claims20

Dependent claims

A regulation circuit comprising:

an input stage operable to receive an input signal and to produce a sense signal based on said input signal;
elements for inputting a plurality of timing signals including a first and a second timing signal;
a first stage coupled to said input stage and at least one of said elements and operable to compare a first reference signal with sa sense signal when said first timing signal indicates and to output a first correction signal based on said first stage comparison;
and
a second stage coupled to said input stage and at least one of said elements and operable to compare a second reference signal with said sense signal when said second timing signal indicates and to output a second correction signal based on said second stage comparison.

2 more elements

Dependencies are inferred from the claim text.

Circuit and method for regulating current using autobias

Life of this patent

Circuit and method for regulating current using autobias

Life of this patent

Abstract

Claims20