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i learned that the differnece between FT and LT is that FT uses division of a time doamain signal into its sinusoids frequency components we have chosen sinusoids because when passed through LTI its shape not changes so we can easily detect change in amplitude and phase . Now i do not...
i know for stability we need positive PM GM . that means at -180 degree gain should be negative(in decibels) for stable systems . From where this arrives i mean why -180 ?? i read somewhere that after -180 degree NEGATIVE FEEDBACK BECOMES POSITIVE FEEDBACK and if at that time gain >1 than...
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