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Q. Basic working of optical coupler?
The optical coupler is suitable for frequencies in the low megahertz range. The photodiode type shown above can handle only small currents; however, other types of couplers, combining phototransistors with the SCR, can be used where more output is required. Optical couplers are replacing transformers in low-voltage and low-current applications. Sensitive digital circuits can use the coupler to control large current and voltages with low-voltage logic levels
What is meant by doping? Doping: Semiconductors in its extremely pure form are termed as intrinsic semiconductor such intrinsic semiconductor to which several suitable impur
Energy Gap Differentiating feature between the metals, insulators, and semiconductors. Ascertains the absorption or emission spectra, the leakage current, and the intrin
What is asynchronous data transfer? It is a data transfer method which is used when the speed of an I/O device does not match with the speed of the microprocessor. Asynchronous
Interrupt latency refers to the amount of time among when an interrupt is triggered and when the interrupt is observe by software.
Q. Show NPN Common Collector Amplifier? The common collector amplifier, often called an emitter follower since its output is taken from the emitter resistor, is useful as
a single stage amplifier circuit
Q. If b and a are the radii of the outer and inner conductors, respectively, of a coaxial cable using a polyethylene dielectric (ε r = 2.26), what ratio b/a is needed for the cabl
write the note on gunn diode and ats applications
We would like you to do an indepth study/research in the tradeoff between the filtering of the QR and the QR performance So it will be about filtering but more of an indepth for
RE should be made large enough to swamp out rB/ B. how does making RE large saturate the transistor b
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