diode.ppt

diode

1. University of halabja college of scenic department of physics 3 rd stage Diode Propertied by :shene Aziz

2. Out line Introduction………………? What is the diode………? Symbol diode…………….? Working P-N diode……..? Types diode………………..? Application…………………?

3. introduction In 1901, Lagidis Chandra Bose, a professor of physics in Calcutta, India, filed a U.S patent for a galena crystal point-contact semiconductor diode for detecting radio signals.

4. what is the diode A diode is a two-terminal semiconductor device that allows current to flow through in one direction only. It basically has negligible resistance on one end and high resistance on another to prevent the current from flowing through both ways. Thus, a diode is like a valve in an electrical circuit.

5. symbol diode

6. working p-n diode A diode in which the junction emits light when current flows through the PN junction. When electricity flows through the semiconductor, the holes and electrons in the P-type semiconductor combine, and the energy is emitted as light. It is sometimes used as both a power lamp and a rectified.

7. types diode

8. application The application areas of diodes include communication systems as limiters, clippers, gates; computer systems as logic gates, clampers; power supply systems as rectifiers and inverters; television systems as phase detectors, limiters, clampers; radar circuits as gain control circuits, parameter amplifiers etc.

9. reference Caruso, A.N., Billa, R.B., Balaz, S., Brand, J.I. and Dowben, P.A., 2004. The heteroisomeric diode. Journal of Physics: Condensed Matter, 16(10), p. L139. Colden, L.A., Corzine, S.W. and Mashanovitch, M.L., 2012. Diode lasers and photonic integrated circuits. John Wiley & Sons.