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a sensorless brushless DC motor control with back emf (zero crossing point ) technique, using Arduino Microcontroller board control and describe in C. program language.
Active-mode NPN transistors in circuits Figure: Structure and use of NPN transistor. Arrow according to schematic. The figure opposite is a schematic presentation
what are the electrical characteristics of TRIAC?
Consider the circuit of Figure for t> 0 with zero initial conditions, v Th (t) = 1 V (dc), and R Th = 2 ; L = 1 H. Determine the complete response for vC(t) for capacitance value
Q. For the CS JFET ampli?er circuit of Figure, R D = 2k and R L = 3k. The JFET with ro = 15 k has a voltage gain A v1 =-4.5 when the entire source resistance is bypassed. Fin
Single Phase Meters Single phase meters are commonly rated for 240 V AC supply; the current ratings are 5/10, 10/20, 2.5/10 or 5/20 A or are for direct connection to the mains
Q. Illustrate the principles of operation of centralized SPC and distributed SPC and compare their performance. Ans: In centralized control, all control equipment is replac
Advantages of High level Languages a.It is easy to learn write and debug the program written in high level languages. b.Programs are more legible as compared to m
Q. For a transistor, when v GS = -2.0 V, find V DSsat if Vp= -4.0 V for an n-channel depletion mode MOSFET. Solution: V p = -(V DSsat + v SG ) but v SG = -v GS = -(-
Q. Explain Commutator Action in dc machine? As a consequence of the arrangement of the commutator and brushes, the currents in all conductors under the north pole are in one di
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