Power Semiconductor Devices Essay -- Power Conversion Essays

Power semiconductor unit DevicesIntroductionToday there ar many cause semiconductor devices employ in different applications of supply conversion. The rectifying tube is one of the oldest semiconductors devices and is still wildly used today in exponent electronics. Diodes ar found in virtually all power converts in one form or another. For this reason our discussion provide be focused on the application of power diodes. Power Diodes be two terminal electronic devices that permit current flow in predominantly one direction. Diodes argon composed of differently doped silicon or germanium bounded together at a junction. designingAs an Electrical Engineering specializing in Power Electronics it is of import to sense the application of different types of diodes in power electronics. The technology behind the victimization of pn junctions and solid state devices is continuously advancing. This is why it is important to be cognizant of the most modern advances of one o f the worlds oldest power semiconductor devices. This paper will focus on the construction and ratings of various types of power diodes to convey the importance diodes have power electronics.Power Diodes Power diodes are successors to the very first semiconductor devices. Power diodes are mainly used as uncontrolled rectifiers to convert single-phase or three- phase AC voltage to a rippled DC voltage. Typically they are constructed of a sort of differently doped silicon or germanium. Most common are the silicon diodes because they can operate at higher currents and junction temperatures consequently germanium diodes. All diodes are devices that conduct current in merely one direction. Whenever the voltage on the anode is positive with respect to the cathode, the dio... ...e a diode that will satisfy the requirements of the locomote while increasing overall circuit efficiency and maintaining reliability. Through improved modern design techniques diodes are no longer a weak com ponent, and are becoming more important in power electronics with the increase demand for higher power feel and power efficiency. Works CitedN. Mohan, T.M. Undeland, W.P. Robbins, Power Electronics, John Wiley & Sons, Inc. 2003 Timothy L. Skvarenina, The Power Electronics handbook CRC Press LLC 2002 Materials Research Society Symposium Proceedings Volume 483, Power Semiconductor Materials and Devices Materials Research Society 1998 Dura-Bilt5i MV Engineering Reference Book, GE Toshiba Automation Systems, U.S.A. 2003 Kilowatt Classroom Electrical Training Seminars - Web station Home Page http//www.kilowattclassroom.com/