Signals and Systems: 8051 code for calculator

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Difference between diffusion capacitance and depletion/transition capacitance

The reactance of a capacitor is given by Xc=1/2*pi*f*C. At lower frequency, Xc is very very large and we can treat it as open circuit. Howe...
Working of BICMOS NAND GATE

There are many logical families such as RTL, DTL, ECL, CMOS etc. All have their advantages and disadvantages. However, in the past decade,...
Frequency Modulation examples/problems

1) A music signal with frequency components from 50 Hz to 21000 Hz is Frequency modulated. If the maximum allowed frequency deviation is 5...
BUCK Converter using PSPICE

Buck converter or DC to DC step down converter is a switched mode power supply (They have maximum efficiency unlike linear regulators ) ...
BICMOS NOR GATE

This is the schematic of BICMOS NOR Gate. I have explained in detail, the working of BICMOS NAND GATE .This post will make the conc...
Serial communication between PC and 8051

Serial communication is widely used when the control system has to be actuated from the computer(PC).I will show you as how to send data fr...
Common source Amplifier with source degeneration (i.e with Rs)

Hello all, this is the common source amplifier with source degeneration . As you can see the circuit has a source resistance. This resis...
Flyback/Freewheeling Diode

The transistor, as you all know, can act as a Switch. So using "Transistor as a switch" concept, many students do a project on &q...
DC to DC Boost converter (PSPICE)

Supppose you have 5 volts battery . Ever wondered how to convert it to 12 volts?. With maximum efficiency?Hmmm, Yes, it is possible with Bo...
Serial communication through virtual ports and Matlab

Steps to follow 1) Go to proteus ISIS Professional 2) Pick devices->Miscellaneous->select COMPIN device 3)Go to virtual instrum...