Quiz Solutions Part 2.4.pdf - ECEn 301 Quiz#28 Analysis of...

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Unformatted text preview: ECEn 301 Quiz #28 — Analysis of a Passive Filter Name: You probably remember that the transfer function of a passive RC low pass filter (circuit on the left) is: H010) = 1+jtl/RC However, if the filter is loaded (as shown in the circuit on the right). then the transfer function changes. What is the transfer function of a loaded passive low pass filter? / RL. \ Hum): ems + 2;) mm ( RL )_1_) R+RL 1+jw(R||RL)C -J . R u :4, : Rt (ma) WC RL L UJC ———'—‘7———- X 2'. if RL‘i jWC i+JUORLC WC gy v ——c\§vis?cm : C LO -.-: Z J." ’ fiat—C “W“ .___;:.W m- H J ) WI A “JE’QZMMW X (1+ J Md RDC> R + \ -\— 3 LQ‘E::C' l : R; . X EL+ E _.,._—-W ""fl‘ “MV‘“‘"‘ “'“w‘raJAvV-«m \ _ _ ,___——_._‘ " L ‘ 0) EL R6; + R._ GaunK - K-+R._ R + J RL+K me = l ‘ K C. .— R W (2 u A , L X m EL RC KL+ R \ + if,” Ruck , Kt. >< \ WW. , R ' K+RL \+3LJJ<_RHRL)C \\ \wiwlr/ ...
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