Electrical Engineering ⇒ Topic : Static and Dynamic Systems
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Daniel
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Static and Dynamic Systems If the output of a continuous time system depends only on the present input and not on the past or future input, the system is known as a static system. There can not be many energy storage elements like capacitor and inductor in a static system. Therefore, we can say that static system is a system without memory. On the other hand, if the output of a system depends on the present as well as past values of inputs, the system is called a dynamic system. A dynamic system is a system with memory. Since the voltage across a resistor y = iR, the resistor is a static system. On the other hand,for a capacitor v = (1/C) ∫ i dt and for an inductor v = L(di/dt). Therefore, inductor and capacitor are dynamic systems. y1(t) = 3x(t) and y2(t)= 2x3(t) represent static systems, whereas y3(t) = 2x(t) +3x(t - 2) represents a dynamic system. | |
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