Rated speed : 1770 RPM PMDC Motor/Generator rated current : 5A. MOSFET : IRF640. Freewheeling diode : IRF640 body diode. R sense : 0.6Ω Current sensing : Opamp LM324 based instrumentation amplifier. Voltage sensing : Opamp LM324 based Differential amplifier. Gate driver : Complementary transistor with optocoupler isolation. Controller : ATMEGA 328P PMDC motor equivalent circuit ia La Ra Va J Tem Permanent magnet eb w b TL
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the deadband and step response of a position control system. To observe the effect of gain changes on the effect of added inertia upon the step response. EQUIPMENT REQUIRED 1 operational Amplifier unit 150A 1 Attenuator unit 150B 1 pre-Amplifier Unit 150C 1 Servo Amplifier 150D 1 Power Supply 150E 1 Motor unit 150F 2 Input and Output potentiometers 150H and 150K 1 Inertia disc with fittings from load unit 150L 1 Voltmeter (30-0-30) INTRODUCTION Deadband is the minimum input
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Differential amplifiers A differential (or difference) amplifier is a circuit used for amplifying a voltage difference between two input signals while rejecting signals that are common to both inputs. IRE = based on approximation IC ≈ IE then IC1 = IC2 = IRE/2 therefore‚ VC1 = VC2 = VCC – IC1R1 Modes of Signal Operation: Single-ended input – input signal is applied to either input with the other input connected to ground Differential or double-ended input – two opposite polarity input signals are
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transistor is made of silicon and has =150. Assume VCE = 0.7 V. Figure 1 Ans: 2.85 V (4 marks) Determine the voltage gain‚ Av of the circuit shown in Figure 2. Assume = 200. Figure 2 Ans: Av = 291 (6 marks) For the common emitter amplifier circuit shown in Figure 3‚ (i) Draw the h parameter equivalent circuit. (ii) Derive the expression for voltage gain and input impedance in h parameters. (iii) If the transistor of Figure 3 has the following set of h parameters:
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Differentiator 4 The design of the circuit: \ 4 The MATLAB code : Sine wave : 7 Square wave 7 Operational Amplifier Based Function Generator Introduction: In these papers I will talk about op-amp to make function generator‚ and generate square‚ triangle and sine waves. Op-amp (operational amplifier) is a fundamental active element of analog circuit design. The first op amps were vacuum-tube circuits consuming lots of space and energy but Modern op amps
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Title: Operational Amplifier‚ OP-AMP Abstract: In the experiment‚ the application involving the operational amplifier was investigated. A ±15volts voltage is supplied to the op-amp. The 15volts also the working ranges for the op-amp. There are two basic op-amp circuit‚ inverting and non-inverting amplifier. For an ideal op-amp‚ the voltage gain of the circuit is the function of ratio of resistor. There are also other configuration investigated like the buffer amplifier which has the same input
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10/2006 d Card file for later analysis. Test data sets are also available on the Internet [1] from medical databases‚ and these can also be processed and displayed using the program. Specifications Input impedance: Input dynamic range: Amplifier current consumption: Optocoupler current consumption: Common mode rejection ratio (CMRR): Gain: Bandwidth: Recording rate: > 1 MΩ 5 mVpp approximately 11 mA approx. 2.2 mA > 70 dB approx. 1‚000 (60 dB) approx. 0.4 Hz to 35 Hz (depending on sound
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PREPARED BY RATUL PAUL(08122003049) SAMOSHRI MITRA(08122003058) DEBAPAM DAS(081220030) ARNAB BISWAS(08122003023) UNDER THE GUIDANCE OF Prof. Ramanath Dutta Department of Electronics and Communication Engineering ST. THOMAS’ COLLEGE OF ENGINEERING & TECHNOLOGY 4 Diamond Harbour Road‚ Kidderpore Kolkata 700 023 CERTIFICATE Department of Electronics and Communication Engineering ST. THOMAS’ COLLEGE OF ENGINEERING &TECHNOLOGY‚ KOLKATA This
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Experiment NO. (6) Characteristics of Transistor NAME: Ali Abdullah AlOtaibi ID: 100207112297 SEMESTER: Fall 2013\2014 LAB: Electronics Lab DIRECTED TO: Dr. Mohammed Majid Al Khalidy ENGINEER: Nour Khalaf Measurement and Plotting For the Characteristics Curve of Transistor 6.1 Objective: 1. To understand the structures and symbols of the transistors. 2. To understand the characteristics of the transistor [1] 6.2 Theory: A transistor is a semiconductor
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Experiment No: 9 Date: COMMON BASE CHARACTERISTICS OF A TRANSISTOR Aim: To plot the input and output characteristics of an NPN transistor in common base configuration and calculate various parameters. Components and Equipments Required: Transistor‚ voltmeters‚ ammeters‚ rheostats‚ dc sources‚ breadboard and CRO. Theory: In CB configuration‚ the base of a transistor is common to input and output circuits. Input voltage is applied between emitter and base and output is taken across collector and
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