11.8 STEP RESPONSE OF SERIES RLC CIRCUIT

Step response of any linear electrical circuit is the zero-state response with unit step input. This can be found by integrating the impulse response of the same circuit. Only the under-damped case is considered here.

Impulse response of a under-damped series RLC circuit is,

 

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Therefore, the step response of the same circuit is

 

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Carrying out the required integration and simplifying the result, ...

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