Lab Experiment To Study the Frequency Response of 1st Order Low Pass Filtration system Essay

LAB ASSIGNMENT # 02

NAME:

FIRST ORDER HIGH MOVE FILTER.

OBJECTIVE:

To examine the consistency response of first buy low complete filter.

Device:

• 741c Op Amplifier.

• Resistors

• Capacitor

• Function generator

• Oscilloscope

• Power supply

Plan:

[pic]

Theory

A high-pass filter, or perhaps HPF, is an LTI filter that passes highs well nevertheless attenuates (i. e., decreases the exuberance of) eq lower than the filter's cutoff frequency. The actual amount of attenuation for each and every frequency is actually a design parameter of the filter. It is sometimes called a low-cut filter or perhaps bass-cut filtration.

The simple first-order electronic high-pass filter displayed in Figure 1 is integrated by placing an type voltage across the series mix of a capacitor and a resistor and using the voltage across the resistor as a great output. The merchandise of the amount of resistance and capacitance (R×C) is the time regular (τ); it truly is inversely proportionate to the cut-off frequency fc, at which the outcome power is usually half the input electrical power. That is, [pic]

[pic]

Figure 1: A unaggressive, analog, first-order high-pass filtration, realized simply by an RC circuit

PROCESS:

• Connect the signal according to circuit diagram. • Give ±15v to the circuit.

• Provide type at pin number 3 of IC by using a resistor. • Connect oscilloscope at pin number 6 of IC.

• Observe the output on oscilloscope.

Observations and calculations

[pic]

OUTPUT WAVEFORMS:

[pic] [pic]

Response for 10Khz Response at 1Khz

[pic]

Summary:

• High move filters are definitely the filters that allow the larger frequencies to pass and obstruct the lower frequencies. • Excessive pass filtration are used in single sideband communication devices to eliminate the low...



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