The paper provides results for the application of boundary feedback control with Zero-Order-Hold (ZOH) to 1-D linear parabolic systems on bounded domains. It is shown that the continuous-time boundary feedback applied in a sample-and-hold fashion guarantees closed-loop exponential stability, provided that the sampling period is sufficiently small. Two different continuous-time feedback designs ...

A new clockfeedthrough compensation scheme for switchedcurrent systems is proposed. The circuit cancels both the signal dependent and the constant clockfeedthrough term. It is shown that this concept can be used to derive various sample-and-hold circuits, depending on the desired clock frequency, accuracy, and power dissipation.