A Linear-like Biasing Technique for Nonlinear Circuits

A new biasing technique is introduced for complex analog circuits. The technique is gradual, controllable and fast converging. The technique offers the circuit designers to initially and directly choose the devices operating points first and later proceed for linear designing. The technique is based on a local biasing method that removes all DC supplies from the circuit and replaces them with sources augmented to the devices so that the devices ports are DC-nullified. It is shown that when the local biasing is done in steps the additivity property, used in linear circuits, can be implemented. Finally, the local biasing makes the nonlinear devices to respond to an AC signal, at selected operating points, just like other linear elements without any need of externally bias them.