9. Laplace Transform of Unit Step Function
The chapter focuses on the Laplace Transform and its applications, particularly emphasizing the unit step function. It dives into the definition and properties of the unit step function, shows how to compute its Laplace Transform, and highlights its significance in solving differential equations. The various applications of Laplace Transform in engineering contexts, such as switching circuits and control systems, are also discussed.
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Sections
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What we have learnt
- The unit step function models discontinuities in time-dependent systems.
- The Laplace Transform of the unit step function is e^{-as}/s.
- The second shifting theorem allows for the transformation of delayed or switched functions.
- This concept is essential in solving piecewise or switched differential equations in engineering.
Key Concepts
- -- Unit Step Function
- A function that is zero for t < a and one for t ≥ a, used to represent the onset of a signal at time a.
- -- Laplace Transform
- An integral transform that converts a function of time to a function of a complex variable, often used to analyze linear time-invariant systems.
- -- Second Shifting Theorem
- A property of the Laplace Transform that allows the transformation of functions multiplied by the unit step function, enabling the analysis of delayed inputs.
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