SimulationConnect the bandpass filter in Figure 19-5 and measure the critical frequency.

Connect the circuit in Figure 19-1 and use the bode plotter to observe the change in the response curve when the capacitance is increased.

Measure the bandwidth for the filter in Figure 19-5.Ĭopyright © 1995-2010, Pearson Education, Inc.Purpose: This lab is to (1) introduce to students National Instruments (NI) ELVIS (Educational Laboratory and Virtual Instrumentation Suite) II and Multisim as a tool for circuit design and testing, prototyping, and instrumentation (2) create and simulate simple RLC circuits with Multisim, build the circuits on ELVIS II+, and test them with the built-in instruments multimeter and oscilloscope and (3) establish the concept of and gain hands-on experience in signal processing by examining low-pass and high-pass filters.

National Instruments (NI) ELVIS is a hands-on design and prototyping platform that integrates 12 most commonly used instruments, such as digital multimeter, oscilloscope, and function generator, into a compact form ideal for lab or classroom. NI ELVIS connects to a computer through USB connection, providing quick and easy acquisition and display of measurements. Based on NI LabVIEW graphical system design software, NI ELVIS offers the flexibility of virtual instrumentation and the ability of customizing your application. Multisim is an industry-standard SPICE (Simulation Program with Integrated Circuits Emphasis) simulation environment, which helps students gain hands-on experience through practical application in designing, prototyping, and testing electrical circuits. The Multisim design approach saves prototype iterations and optimizes printed circuit board designs. Multisim allows the use of multiple instruments, which means that the number of operating characteristics that may be monitored at the same time is unlimited. Because of that, students are able to observe the effects of changing a given component in every area of interest around the schematic. Lab 4-3 Multisim, ELVIS II, and Basic Circuit – AC Circuit The third section of Lab 4 aims at (1) introducing to students more virtual instruments in Multisim or those that are integrated into ELVIS II for circuit analysis and (2) gaining students more hands-on experiences with LabVIEW, Multisim, and ELVIS II. Voltage gain or loss provides information about how an input signal is altered by the circuit for the amplitude (the vertical shift).When the amplitude of the output signal is larger than that of the input, it is called gain, otherwise, loss.

How to plot bode plot multisim