Transistor Circuit Noise: Unwanted signals at the output of an electronics system are termed noise. The noise amplitude may be large enough to severely distort, or completely swamp, the wanted…
High Frequency Analysis of BJT: Coupling and Bypass Capacitor Effects - Consider the typical High Frequency Analysis of BJT illustrated in Fig. 8-5. As discussed, the amplifier voltage gain is…
Temperature Effect on Semiconductor Diode: Diode Power Dissipation - The power dissipation in a diode is simply calculated as the device terminal voltage multiplied by the current level. Device manufacturers…
Traction Drives Articles: Electric Traction Services: Electric Traction Services can be broadly classified as: Electric Trains. Electric buses, trams (or tramways) and trolleys. Battery driven and solar powered vehicles. Electric…
Induction Motor Drives Articles: Three Phase Induction Motors: Three Phase Induction Motors are of two types: squirrel-case and wound-rotor. In squirrel-cage, the rotor consists of longitudinal conductor-bars shorted by circular…
Energy Efficient Operation of Drives: In many Energy Efficient Operation of Drives applications involving constant speed operation, induction motors operate under no load or light load for prolonged periods, such…
Use of Efficient Semiconductor Converters: Prior to development of Use of Efficient Semiconductor Converters, inefficient power modulators were employed in several applications. While replacement of these power modulators by the…
Diesel Electric Traction System: Because of high initial cost, electric traction is justified only where there is sufficient volume of traffic. Diesel Electric Traction System is preferable where the traffic…