Patent ID: 9236799
Filing Date: 2016-01-12
CPC Classification: G05F,G11C,H02M

Claim Text:
1. A current generator, comprising: an amplifier having a first terminal configured to receive an input voltage; at least one tunable resistor coupled to a second terminal of the amplifier; a resistor calibration circuit coupled to the at least one tunable resistor; at least one first transistor, wherein a gate of the at least one first transistor is coupled to an output of the amplifier, and a terminal of the at least one first transistor is coupled to the at least one tunable resistor or a load; and at least one second transistor, wherein a gate of the at least one second transistor is configured to receive an output current and a drain of the at least one second transistor is coupled to a plurality of resistance sections, wherein the resistor calibration circuit is configured to adjust a resistance setting of the at least one tunable resistor to control a current level of the current generator based on a power supply voltage or a current of a reference resistor.