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This paper shows the multipath frequency compensation in a general purpose operational amplifier. Firstly, it deals with the requirements of a general purpose opamp and introduces the need of the frequency compensation in the current circuits. Then, the rules to integrate multipath in an opamp are developed and the transfer function is presented and compared to the one of the nested miller compensation...
A current mirror (CM) is reconfigured based on self cascode (SC) arrangement, useful for low voltage (LV) analog and mixed mode circuits. The CM uses 4 MOSFETs, has high input and output swing, operating at plusmn0.5 V supply. Further, a novel CMOS CCII has been revisited and implemented using this CM for sourcing the mirrored current into a high impedance output node. P-spice simulations confirm...
Class D amplifiers are becoming the most feasible solution for embedded audio application. However, distortions due to the non-linear nature of switching stage are the main drawback for this amplifier topology. This paper discusses the design and implementation of high fidelity audio class D using sliding mode control scheme. This design method proves to be a cost effective solution for industrial...
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