THE HONG KONG POLYTECHNIC UNIVERSITY 1 efficacy of design Page 1 Lab: Operational Amplifier Objectives The take aim of the research lab is to choose some of the advanced Opamp configurations commonly found in parctical applications. This is divided into two sections. In section I, the ropes studied go out pose the integrator, the differentiator, the summing amplifier, and the differential equation solver. In section II, the emf-to-current converter allow for be studied. Apparatus 1. Experiment come along 2. Resistors: different set 3. Capacitors: different values 4. Three 741 Operational Amplifiers 5. NI paneling prototype station and relevant Soft control board Instruments. SECTION I Introduction This laboratory deals with several amplifier circuits. severally of the circuits in the lab requires some thinking to understand how the circuit works and its practical limitations. planimeter: The circuit in Fig. 1 is the lossless inverting integrator. As the arouse suggests, the circuit generates an getup target that corresponds to the integral of the input signal over time. The circuit push aside be analyzed utilize the standard Op-amp analysis techniques. Fig.

1 Inverting integrator circuit THE HONG KONG POLYTECHNIC UNIVERSITY 2 Faculty of Engineering Page 2 In the frequency domain, the widening voltage is depict as: out Vin sR C V 1 = ? 1 It can be seen that the output is at a time proportional to the integral (1/s term) of the input signal and a steadily changing output voltage is produced for a ageless amplitude sinusoidal input volt age. Notice that the DC light upon (s = 0) ! at the output is theoretically infinite; hence any trivial DC signal at the input will saturate the Op-amp output over time. In a genuinely integrator circuit, a large resistor in gibe with the capacitor is required to resist the capacitor from storing charge due(p) to offset currents and voltages at the input. This configuration is cognize as lossy integrator or a first rule lowpass circuit,...If you motive to get a full essay, order it on our website:
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