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An electrical engineering experiment report from palestine technical university. The experiment involves studying a full wave rectifier circuit using diodes, resistors, a breadboard, capacitors, an ac source, a voltmeter, an ammeter, and an oscilloscope. The objectives of the experiment include recognizing the characteristics of diodes, evaluating peak-to-peak values and frequencies, and calculating the ratio of dc voltage to input voltage. The document also includes a list of equipment and a procedure for setting up and measuring the circuit.
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Experiment Name : Full Wave Rectifier Circuit Experiment Number : 3 Date : 22 / 11 / 2012
Name of instructor : Eng. Asma’ Shar’ab
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, solid-state diodes,
. silicon-controlled rectifiers and other silicon-based semiconductor switches Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame . rectification is used to detect presence of flame The simple process of rectification produces a type of DC characterized by pulsating voltages and currents (although still unidirectional). Depending upon the type of end- use, this type of DC current may then be further modified into the type of relatively constant voltage DC characteristically produced by such sources as batteries and solar . cells A full-wave rectifier converts the whole of the input waveform to one of constant polarity (positive or negative) at its output. Full-wave rectification converts both polarities of the input waveform to DC (direct current), and yields a higher mean output voltage. Two diodes and a center tapped transformer, or four diodes in a bridge configuration and any AC source (including a transformer without center tap), are needed. Single semiconductor diodes, double diodes with common cathode or common anode, and . four-diode bridges, are manufactured as single components
Set up the circuit.(without smoothing capacitor),the input voltage V(in)and the dc voltage V(dc) are to be measured with a multimeter and the ratio V(dc) to V(in) to be calculated. We will use the Oscilloscope to know and measure the voltage peak-to-peak and the frequency.
RL(KΩ)Ω)) Ud(V) Id(mA) Uvrpp(V) 10 3.47 0.35 2. 22 2.6 1.22 3.
