Adaptively controlled circuits are provided that can include an output
buffer circuit, a sensing circuit, and a current conversion circuit. The output
buffer circuit can include, for example, inputs, outputs and a bias control input.
The sensing circuit can also include inputs and outputs. Two or more sensing circuit
outputs can simultaneously turn to lower or higher level than a predetermined threshold
level. The current conversion circuit can be composed of one or more set of cascaded
transistors. Inputs of the cascaded transistors can be connected to outputs of
the sensing circuit. The output of the cascaded transistors can be connected to
foresaid bias control input of the output buffer. An output current of the current
conversion circuit increases when signal level of the inputs of the sensing circuit
become equal or close to each other.
