A full wave bridge rectifier is a type of rectifier which will use four diodes or more than that in a bridge formation. During the first half of AC cycle, two diodes are forward biased and during the second half of AC cycle, the other two diodes become forward biased. The primary winding of the transformer is supplied with a sinusoidal supply. Log in, Welcome to the World of Technical Education. Figure 3 shows a bridge rectifier with an inductive load. If the load resistance is 10.8 Ω, find, Po(avg) = Vo(avg) x Io(avg) = 108 x 10 = 1080 W, PF = P/S = (Vo(avg) x Io(avg) ) / (VRMS x IRMS ) = (108 x 10) / (120 x 10) = 0.9, Adding an inductance in series with the load resistance changes the voltage and current waveform. This full-wave bridge rectifier uses four diodes. Rectifiers are mainly classified into three types namely half-wave, full-wave, and bridge rectifier. These are fed to two identical SCRs with identical gate control circuit. Needs four diodes; Power loses are more as compared to the centre tapped full-wave rectifier. Rectifiers are mainly two types, half wave rectifier and full wave rectifier. A bridge rectifier provides full-wave rectification from a two-wire AC input, resulting in lower cost and weight as compared to a rectifier with a 3-wire input from a transformer with a center-tapped secondary winding. Assume that a load is connected at the output. The working of this rectifier is almost the same as a half wave rectifier. Full Wave Bridge Rectifier In Full Wave Bridge Rectifier, an ordinary transformer is used in place of a center-tapped transformer.The circuit forms a bridge connecting the four diodes D 1, D 2, D 3, and D 4.The circuit diagram of the Full Wave Bridge Rectifier is shown below. In each half-cycle, a set of two diodes conduct and block the current alternately. Rectification is the electrical process to convert an alternating current (or voltage) to direct current (or voltage). To make a full-wave precision rectifier circuit, I have just added a summing amplifier to the output of the previously mentioned half-wave rectifier circuit. This arrangement is known as Center Tapped Full Wave Rectifier. The former is therefore called a half-wave rectifier, as it only rectifies one half of the supply waveform, while the latter is called a full-wave rectifier, as it rectifies both halves or the entirety of the waveform. Full-wave rectification can also be obtained by using a bridge rectifier like the one shown in Figure 1. The first method makes use of a centre tapped transformer and 2 diodes. But in full wave rectifier, both positive and negative half cycles of the input AC current will charge the capacitor. Half wave Rectifier: Center Tap Full wave Rectifier Bridge Full wave Rectifier 1. During the positive half-cycle of the AC voltage, terminal 1 will be positive, centre-tap will be at zero potential and terminal 2 will be negative potential. The current path through R is in the same direction as before, so there is positive drop across R during both half-cycle. A full-wave rectifier is more efficient and has a smoother output than a half-wave rectifier. although not a sine wave, the AC source current is an alternating waveform of rectangular shape. Block Diagram of Complete Rectifier Circuit: The half-wave rectifier design has only one, The full-wave rectifier allows current to flow towards load even there is a negative cycle, The full wave bridge rectifier uses a combination of four diodes, How does Capacitor-Input Filter use in Power Supply? //-->