Design of High-Performance Current Regulator
Bo Zhang · 2007
Based on 0.5 μm CMOS technology,a current regulator working in extended range is designed.With the benefits of NMOS and PMOS differential input pairs and the improved differential structure,the operation range is extended,and the driver of the common cathode is realized.Besides,operational amplifiers used in the circuit are all one-stage and self-compensated,which simplifies the design for stability and facilitates its implementation.Simulation results show that the current regulator has an accuracy above 80% over entire operation range.