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Q. Show Step-motor control system?
Figure illustrates a system in which the prime mover used in the disk-drive system is a step motor driven by pulse commands. In response to each pulse input, the step motor moves by some fixed displacement. This all-digital system does not need an A/D or D/A converter.
For the circuit of Figure, given that V CC = 5V, R C = 1k, β = 100, and the high range is 4 to 5 V, choose R B such that any high input will saturate the transistor with the ba
For the circuit of Figure, obtain the complete solution for the current i L (t) through the 5-H inductor and the voltage v x (t) across the 6- resistor.
Q. Common-Emitter Configuration? The emitter part of a circuit being common to both the input and the output portions, Figure (a) illustrates a common-emitter (CE) BJT amplifie
Q. If a single phase motor fails to run or start slow what action to be taken. Ans: If it is not starting check the supply and test the winding if it found normal check
Problem: (a) Compare the different MAC schemes, namely FDMA, SDMA, TDMA and CDMA. (b) Describe with help of diagrams the different phenomena involved in multipath propaga
design a 6 modulo ring counter
A closed magnetic circuit of cast steel having a 6cm long path of cross-sectional area 1cm 2 and a 2 cm path of cross-sectional area 0.5 cm 2 . A coil of 200 turns is wound around
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Transistor as a switch: Transistors are generally employed as electronic switches, for both of the high power applications including switched-mode power supplies and low power
Q. Write a short note on types of enclosure of machine. Sol. The various types of d.c. machine : (1) Magnetic frame or Yoke (2)
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