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POWER SUPPLIERS
A power supply is used to energize and control the electronic system. The power supply converts AC voltage into revaluated DC voltage according to the requirement of particular system. Since the rectifier also performs this operation but the DC output will not be ripple less hence the filter circuit is used to obtain ripple less DC voltage. The filter circuit makes the rectifier inefficient and weighty because physically the filter circuit is quite large. Therefore a switched mode power supply is used to convert AC into very high fleered DC. SMPS is based on the principle of chopper.
Chopper is a device which converts a fixed dc voltage to a variable de voltage. Chopper provides smooth acceleration control fast response regeneration and high efficiency choppers are used in subway cars trolley buses marine hoists forklift trucks and mine haulers.
NIS Sound Systems, Inc. produces and sells sound systems for both home and auto. DVD players used in the assembly of NIS systems are purchased from BUN Electronics. NIS purchasing
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h parameters
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National tariff policy: The Central Government notified the National Tariff Policy on January 6, 2006, for the power sector in line along with the Section 3 of the EA, 2003. Wi
The one line diagram of a simple three-bus power system is shown in the figure below. Each generator is represented by an emf behind the transient reactance. All impedances are e
Give the significance of SIM and RIM instruction available in 8085. Instruction SIM: Set Interrupt Mask. This is a 1 byte instruction and can be used three dissimilar functio
limits of collector to base biasing
This is a synchronous motor that does not require a special start-up auxiliary motor. The rotor consists of stout copper (or aluminium) conductors arranged in the form of
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