Question:
A phase lag-lead network introduces in the output_______.
A phase lag-lead network introduces in the output_______.
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Lag-lead networks improve system stability by providing phase lead at high frequency and phase lag at low frequency.
Updated On: Jun 23, 2025
- Lag at high frequency and lead at low frequency
- Lead at high frequency and lag at low frequency
- Lag at all frequency
- lead at all frequency
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The Correct Option is B
Solution and Explanation
A lag-lead network introduces both a lag and a lead in the output depending on frequency.
- At high frequencies, the lead component dominates, so the output leads the input.
- At low frequencies, the lag component dominates, so the output lags the input.
This type of network is useful in compensating systems to meet specific performance criteria in both frequency and time domain.
- At high frequencies, the lead component dominates, so the output leads the input.
- At low frequencies, the lag component dominates, so the output lags the input.
This type of network is useful in compensating systems to meet specific performance criteria in both frequency and time domain.
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