  Proportional control can be realized directly through the amplification of
analog signals, and it also has the advantage of easy tuning parameters in
digital signal control. However, it is difficult for the proportional control
to preset the upper bound of settling time. To address this problem, a novel
practical explicit-time control method is proposed. In bounded initial
condition, this method makes this system error converge to a predefined
neighborhood of zero within an explicit time. More specifically, the initial
condition set and conditionally stable set are solved by practical
explicit-time stabilization theorem. Based on that, a proportional feedback
control is founded to achieve practical conditional fixed-time stability.
