Function of filter circuit Coursework Example | Topics and Well Written Essays - 500 words

Function of filter circuit - Coursework Example It is less in voltage than the series circuit because its output voltage is the same as the input voltage. This circuit therefore, does not operate as a filter to the input signal except when supplied by the current source.The ideal op-amp amplifies all signals from Direct Current to the greatest Alternating Current frequenciesOpen-Loop Gain is infinite in ideal Op-amp amplifier. In real Op-Amp, the open loop gain is finite, ranging between 20000 and 200000.Ideal op-amp generates zero noise voltage from the internal parts.Real op-amp has several sources of noise, including semiconductor noise and resistive noise.Ideal op-amp operates as a perfect source of internal voltage without any internal resistance. Real op-amps have output-impedance ranging between 100 - 20â„ ¦.This diagram represents the relationship between the capacitor and a resistor in the circuit, if they are arranged in series. The circuit assists in measuring the voltage across the capacitor, using Kirchhoff's law o f the current. In this, the current that charges the capacitor has to be equal to the current passing through the resistor.A filter circuit server the purpose of producing restrictions on the bandwidth of frequencies for an alternating input signal and generate output with a narrower frequency- bandwidth. It also eliminates the alternating current ripple remaining in the output of the rectification of a diode-based alternating current circuit, leading to higher quality signal.