Basic Electronics Semiconductor —I • Materials that permit flow of electrons are called conductors (e.g.‚ gold‚ silver‚ copper‚ etc.). • Materials that block flow of electrons are called insulators (e.g.‚ rubber‚ glass‚ Teflon‚ mica‚ etc.). • Materials whose conductivity falls between those of conductors and insulators are called semiconductors. • Semiconductors are “part-time” conductors whose conductivity can be controlled. germanium Semiconductors silicon
Premium Semiconductor
charge densities in a semiconductor‚ Fermi Dirac distribution‚ carrier concentrations and fermi levels in emiconductor‚ Generation and recombination of charges‚ diffusion and continuity equation‚ Mass action Law‚ Hall effect. UNIT 2: Junction diodes‚ Diode as a ckt. element‚ load line concept‚ clipping and clamping circuits‚ Voltage multipliers. Construction‚ characteristics and working principles of UJT UNIT 3: Transistor
Premium Electronic engineering Transistor Random variable
Diagram and its Description 2.1.1 Transformer 2.1.2 Rectifier 2.1.3 Smoothing 2.1.4 Regulator Component List Schematic of Variable Power Supply Working of the Circuit 2 2 2 2 3 3 4 5 2.2 2.3 2.4 3-HARDWARE PORTRAYAL 3.1 3.2 3.3 Transformer Diode Capacitor 3.3.1 Electrolyte Capacitor 3.3.2 Unpolarised Capacitor 3.3.3 Capacitor Colour Code Resistor 3.4.1
Premium Resistor Capacitor Alternating current
EXPERIMENT NO-1 AIM- To determine the frequency of A. C. mains by using an electric vibrator. APPARATUS- Electric vibrator‚ table lamp‚ pulley‚ weight box‚ fishing cord‚ a. c. source. THEORY- when a cord of mass per unit length m is connected to the vibrating rod of the vibrator and stretched with a tension T‚ the cord vibrators in segments. If the length of the cord is then adjusted until the nodes are clearly marked‚ the frequency of the stretched string is the same as of the vibrating rod which
Premium
Lovely Professional University‚Punjab Format For Instruction Plan [for Courses with Lectures and Tutorials Course No ece201 Cours Title ELECTRONIC DEVICES AND CIRCUITS Course Planner ECE201 ELECTRONIC DEVICES AND CIRCUITS 15330 :: Ishan Luthra Text Book: Other Specific Book: Lectures Tutorial Practical Credits 3 1 0 1 JACOB MILLMAN & HALKIAS‚ INTEGRATED ELECTRONICS: ANALOG & DIGITAL CIRCUIT SYSTEMS‚ Mc GRAW HILL‚ 1991 EDITION‚ 41 PRINT‚ 2005. 2 1. ROBERT
Premium Transistor Bipolar junction transistor
11/24/2013 CLASSIFICATIONS of MATERIALS Semiconductor Theory a. Conductor b. Semiconductor c. Insulator • Number of valence electrons is 1-3 with very high conductivity • Number of valence electrons is 4 with intermediate conductivity • Number of valence electrons is 5-8 with very low conductivity Semiconductor Conductors • Has more electrons that are free to move • Supports charge carriers to flow • Support flow of electricity • Has very low resistance allowing
Premium Semiconductor Electron Electric charge
PART I CHAPTER III DIODES APPLICATIONS –SPECIAL PURPOSE DIODES OBJECTIVES 3.1 I-V- characteristics of normal and zener diode and measurement of static and dynamic resistance 3.2 I-V characteristics on CRO 3.3 Clipping circuits using diodes 3.4 Clamping circuits using diodes 3.5 Diode as a voltage multiplier 3.6 Diode used as a meter over current protection INTRODUCTION SEMICONDUCTORS Semiconductors are materials which are used to manufacture all electronic and optoelectronic devices
Premium
It’s nothing but a AC to DC converter. Keywords: 5V DC power supply‚ rectifier‚ diode‚ filter‚ capacitor‚ zener diode‚ voltage regulator‚ signal‚ waveshape. 1. Introduction I’m designing a 5V DC power supply. Here I’m basically designing a AC to DC converter. To convert the AC to DC‚ I’m using components like full wave bridge rectifier‚ filter & a voltage regulator. To get the constant 5V I use 1N4733A zener diode. The block diagram of this project is given below and giving the part to part
Premium Rectifier
Semiconductor The diode – A diode is an electronic component which allows electric current to glow in only one direction. Diodes are constructed from semiconductors. The anode is the positive terminal and the cathode the negative terminal. LED= light emitting diode a diode which emits light. Semiconductor materials Silicon is the most commonly used semiconductor in electronics‚ germanium is also used. These elements form a stable crystal lattice‚ with each atom sharing its four outer electrons
Premium Semiconductor Transistor Electron
Laboratory 3: Diode Characteristics Instructions: Unless otherwise mentioned in the experiment instructions‚ all experiments are performed both in SPICE and physical implementation. The results need to be reported from both the SPICE and physical measurements. 1 Current voltage characteristics of diodes 1. Design a circuit to measure the forward-bias current voltage characteristics of diode as shown in Fig 3 using Circuitlab. Figure 1: A SPICE circuit for plotting current voltage
Premium