Patent ID: 7148741

Claim:
A current supply circuit, comprising: an input operably connected to receive a first value signal; a load terminal operably connected to provide a load current through a load, the load current dependent on the first value signal; a selectively activatable current regulator, the current regulator operably coupled to receive the first value signal and, based on the first value signal, cause a first current to be provided through the load as at least a portion of the load current when the current regulator is activated; a selectively activatable adjustable current source, the adjustable current source operably coupled to receive the first value signal and, based on the first value signal, causes a second current to be provided through the load as at least a portion of the load current when the adjustable current source is activated; and a comparator circuit operably coupled to receive the first value signal and a second value signal, the comparator circuit operable to generate a comparison of the first value signal and the second value signal, the comparator circuit further operable to cause selective activation of one of the current regulator or the adjustable current source based on the comparison.