Question

A bridges-T network is often used in AC control systems as afilter network.

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asked 2021-01-10

A bridges-T network is often used in AC control systems as afilter network. The circuit of one bridged-T network is shown in Figure. Show that the transfer function of the network is;
\(\displaystyle{\frac{{{V}_{{0}}{\left({S}\right)}}}{{{V}_{{\in{\left({S}\right)}}}}}}={\frac{{{1}+{2}{R}_{{1}}{C}_{{\delta}}+{R}_{{1}}{R}_{{2}}{C}^{{2}}{s}^{{2}}}}{{{1}+{\left({2}{R}_{{1}}+{R}_{{2}}\right)}{C}_{{\delta}}+{R}_{{1}}{R}_{{2}}{C}^{{2}}{s}^{{2}}}}}\)
Sketch the pole-zero diagram when \(\displaystyle{R}_{{1}}={0.5},{R}_{{2}}={1}\) and \(\displaystyle{C}={0.5}\)
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2021-01-11

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