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Q. Explain about Differentiator?
Shown in Figure is a differentiator which is obtained by replacing R1 in the inverting amplifier of Figure by a capacitor C. Assuming ideal op-amp characteristics, one has i = iC and vo = - Ri = - RiC. But since iC (t) = Cdvin (t) /dt ,we get
vo (t) = - RC dvin (t) / dt
which corresponds to a differentiator with a gain of -RC. In practice, however, differentiators are normally avoided because of high-frequency noise (which is accentuated due to a transfer function that increases with frequency) and stability problems (which make them oscillate).
SUB Instruction Op code format is of SUB instruction is Replace the three bit code of the register R from to obtain the op code of the required SUB instruction . o
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Q. What are frequency response curves? How are they made? Every amplifier has a frequency-response curve associated with it. They provide a "picture" of the performance of an a
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explain with figure
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 e
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