Noob Robo

Purpose: - (a) Study the amplifier combined with two RC components. (b) Set the curve of the frequency response. Therefore determines the bandwidth.   Requirements: - Transistor, function generator, resistors, capacitors, controlled power supply, multimeter, breadboard, connecting cables, etc.   Circuits Diagram:- Opinion: - The amplifier is the building block for many electrical systems. A single-stage amplifier is not enough to build an effective electronic system. When no. The amplifier class is used sequentially called multistage. Amplifier (or) amplifier with cascaded high gain can be obtained from multistage amplifying. Demonstrates how to pair a phase 2 amplifier using the RC-coupling system. This is the most widely used method. In this system, a signal built across the resistor RE (R2) of the first phase is connected below the second phase with a capacitor CE (C2). The coupling capacitor prevents the DC power of the first phase from reaching the base ...

Aim:-  To draw the frequency response of Pre-emphasis & De-emphasis networks. Introduction:- Educational trainer a useful kit for the demonstration of Pre-emphasis & De-emphasis at different time constants & plot the graph of the frequency response of Pre-emphasis and De-emphasis networks. The kit consists of 200 Hz-20 kHz audio oscillator 70µ sec & 50µ sec De-emphasis networks.  Pre-Emphasis Circuit Diagram:- DE-Emphasis Circuit Diagram:- Theory:- Pre-emphasis refers to boosting the relative amplitudes of the modulating voltage for higher audio frequencies from 2 to approximately 15 kHz . De-emphasis means attenuating those frequencies by the amount by which they are boosted.  However, Pre-emphasis is done at the transmitter and De-emphasis is done in the receiver. The purpose is to improve the signal-to-noise ratio for FM reception. A time constant of 75µ sec is specified in the RC or L/Z network for Pre-emphasis and De-emphasis. Tabular colu...

Aim:- To construct a half-wave rectifier circuit and full wave rectifier and determine the ripple factor. Apparatus:- Transformer (0-6), AC voltmeter, DC voltmeter (0-10 V), Capacitor (100µF), diode. Circuit Diagram :- Theory:- A rectifier is a device that converts Alternating current (AC) to Direct current. This flows in only one direction. The process is known as “Rectification” since it “Straightens” the direction of the current. There are two types of rectifier’s half-wave and Full-wave. Half-wave Rectifier:- In half-wave rectifier, when the AC supply is applied at the input, the positive half cycle appears across the load, whereas the negative half cycle is suppressed. This can be done by using the semiconductor P-N junction diode. The diode allows the current to flow during the positive half cycle only, thus the positive half appears as fluctuating DC voltage. Full-wave Rectifier:- In the full-wave rectifier circuit, we use two diodes, one for each half of the...

Aim:- To determine the value of the time constant of the given capacitor by drawing it’s charging and discharging curves. Apparatus:- DC supply, Voltmeter, Stop clock, Capacitor and Resistor.   Circuit Diagram:- Circuit Details:-  1) K1 and K2= Key 2)B=Battery 3)R=Resistance  4)C= capacitor  5)o/p= output Theory:- A capacitor is a passive device that stores electrical energy as electrical charges and returns energy to the circuit whenever required. When a capacitor is connected to a circuit with direct current (DC) source, two processes which are called charging and discharging will takes place in specific condition. A capacitor is connected to Dc power supply and current flows through the circuit. Both plates get the equal and opposite charges and on increasing potential difference V c is created while the capacitor is charging. Once the voltage at terminals of the capacitor V c is equal to the power supply voltage V C =V, the capacitor is fully ...