University:
University of South Wales
Course:
NG3S921 | Advanced Semiconductors
Academic year:

2023
Views:

255

Pages:

3
Author:

Rebecca L.

Pounciple In forward biasing, it follars low resistance path and high resestance path for reverse beasing. The junchon diode conduds current when it is fonward biased and doesn't conduct when it is reverze biased Rectification efficiency Ratio of de output power to apphed ac input power Efficiency dic output power ac input power de power delivered to the load ac. input power from the transformer Becondary Pac Pac Repple factose It is the purity of de output of rectifier * Ripple factor, repfective value of ac component Value of dic component = Rms value of all Ac componenty dic component Iams Idc •We know, Total sims value of AC, 2 Sams tms Dividing this eq with I Farms -1 (Taking Square root) Ide Peak inverse voltage (PIV) Maximum reverse voltage that a diode can wichstand cwithout destroying its junction & called peak inverse voltage If the reverse bias voltage exceeds the break down voltage of this the pen pri yunchon the current through the pr juxhon increases sharply and the diade iş burd due to excessive heating -The Maximum geverse Voltage diode na Mechfier is called peak inverse voltage (piv) of the sectiferer. Two types of rechfien (1) Half wave rectifien (ii) full wave rectifier a) Centre baped b) Bundge rectifier (1) Half-wave rectifiey If only one half of ac is rectified, it is called a half-wave recliffen