Passive Band Pass Filters - Laboratory Experiment 11 | ELEC 195, Lab Reports of Microelectronic Circuits

Download Passive Band Pass Filters - Laboratory Experiment 11 | ELEC 195 and more Lab Reports Microelectronic Circuits in PDF only on Docsity! Wentworth Institute of Technology Name: Department of Electronics and Mechanical Date: ELEC 195 - Circuits Theory II Experiment 11 Passive Band-Pass Filters Objective: 1. To become familiar with the characteristics of passive band-pass filters. 2. To analyze the frequency response of band-pass filters. 3. To find the cutoff frequencies and bandwidth experimentally and comparing them with theoretical value. Equipment Required: Resistors: 1K  Jumpers Capacitors: 0.1F Inductors: 10mH A breadboard Leads BNC connectors Resume of Theory: Passive band-pass filters or tuned filters use all three components (resistors, capacitors and inductors) to achieve their goals. The frequency response of the tuned filter is shown in the Figure below. The band frequencies between the high and low cutoff frequencies is called the bandwidth (BW). A. Khabari Wentworth Inst. of Tech. Page 1 These filters rely heavily on the operational concept known as resonance. A circuit is said to be at resonance when the total stored energy in the magnetic field of inductor is transferred to the capacitor then discharge, which stores it in the form of an electric filed. The capacitor then discharges so that the energy is again stored in the form of magnetic filed in the inductor. At the resonant frequency, the reactances are equal (XL = XC) and the circuit is purely resistive. Two different tuned filters (series and parallel) are shown in the Figure shown below. Procedure: Part 1: a) Construct the network shown below, and find the measured values of all three components (R,L,C). R measured = _________ A. Khabari Wentworth Inst. of Tech. Page 2