Find tplh for each case

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The purpose of this problem is to compare the value of tPLH obtained with a resistive load [see Fig.(a)] to that obtained with a current-source load [see Fig. (b)]. For a fair comparison, let the current source I = VDD/RD, which is the initial current available to charge the capacitor in the case of a resistive load. Find tPLH for each case, and hence the percentage reduction obtained when a current-source load is used.

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Reference no: EM131019300

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