Temperature Controls using an Analog Electronic Controller: A Temperature Controls scheme using an Analog Electronic Controller of Fig. 21.14 is as shown in Fig. 21.16. The temperature setting, derived from a slide wire, is compared with the…
Terminal Characteristics of Junction Diodes: The volt-ampere characteristic of a silicon junction diode is depicted in Fig. 7.14. The same Terminal Characteristics of Junction Diodes is depicted in Fig. 7.15 with some scales expanded and…
Insulation Coordination of Substation: For steep fronted lightning waves at Insulation Coordination of Substation and at different points on lines, the voltages at sub-stations may exceed the protective level depending on the distances involved and…
Fiber Losses: Energy losses and signal degradation in Fiber Losses can be attributed to a variety of causes, some of which have been mentioned previously. To add to this list: 1. Light scattering (Rayleigh Scattering)…
Split Phase Motor: When a motor is provided with two windings, even though these are excited from the same voltage (supply being single-phase), the currents in the two windings can be made out-of-phase by adjustment…
Foldback Current Limiting Circuit: The disadvantage of constant current limit is relatively large power dissipation in the series pass transistor when the load terminals are shorted. Thus a large power rating transistor is required. The…
Structure of Power Systems: Structure of Power Systems - Generating stations, transmission lines and the distribution systems are the main components of an electric power system. Generating stations and a distribution system are connected through…
CT Scan Working Principle: CT Scan Working Principle - Biomedicine is one area in which the use of digital signal processing techniques had had great impact. Computer tomography A recent advance in diagnostic analysis is…
Fixed Positive Voltage Regulators: The series 7800 regulators provide eight voltage options, rangÂing from 5 to 24 V, as indicated in Table 43.2. These ICs are designed as fixed voltage regulators and with adequate heat…
Shockley Diode Equation, Symbol, Operation and Applications: The four layer diode, also called the Shockley diode after its inÂventor Willian Shockley, is essentially a low-current SCR without a gate. It is classified as a diode…
