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Optimum single-zero lead compensation of systems having two dominant poles

Optimum single-zero lead compensation of systems having two dominant poles

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© The Institution of Electrical Engineers
Published

For multipole feedback systems having two dominant poles, simple approximations are given for the zero which is optimum in the sense that gain margin is maximised, and for the corresponding maximum marginal gain. The formulas permit rapid design of optimum single-zero lead compensation for such systems.

Inspec keywords: compensation; feedback; poles and zeros

Other keywords: multipole feedback systems; gain margin maximisation; two dominant poles; optimum single zero lead compensation

Subjects: Lumped linear networks; Amplifiers

References

    1. 1)
      • H. Nyquist . Regeneration theory. Bell Syst. Tech. J. , 126 - 127
    2. 2)
      • G.H. Hardy , J.E. Littlewood , G. Polya . (1973) , Inequalities.
    3. 3)
      • G.J. Sloggett . Simple approximations for the gain margin of systems having two dominant poles. Electron. Lett. , 286 - 287
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