#### Tutorial – a Static Lissajous Emulator

12/11/2010

Hi there, this is a tutorial explaining the construction of a very basic Lissajous emulator in Excel. It’s supposed to be very easy to understand at the high school level.  Good luck, George [sociallocker][/sociallocker]

#### RLC-Parallel

11/28/2010

This RLC parallel circuit model has several sound effects so it must be dearchived in the same subdirectory. [sociallocker][/sociallocker]

#### Introduction to Numerical Methods – Basic Filters #2

11/09/2010

This post shows the steps for building a first model of a single pole RC high pass filter (HPF) in Excel based on numerical solution using the finite difference method. It is quite elemetary to undersand, try to go through the proof regardless of your background. [sociallocker][/sociallocker]

#### Introduction to Numerical Methods – Basic Filters #1

10/22/2010

This post shows the steps for building a first model of a single pole RC low pass filter (LPF) in Excel based on numerical solution using the finite difference method. It is quite elemetary to undersand, try to go through the proof regardless of your background. [sociallocker][/sociallocker]

#### Dynamic Lissajous Emulator

10/01/2010

This is a dynamic Lissajous emulator in the sense that the waveform is obtained by combining 2 time varying sinusoidal waves with different frequencies. [sociallocker][/sociallocker]

#### Static Lissajous Emulators (2D and 3D)

09/29/2010

This is a static Lissajous emulator in the sense that the waveform is obtained by combining 2 static sinusoidal waves with different frequencies. As a paranthesis, I will be preparing a dynamic version which will look just like the wave shape seen on a real oscilloscope. The file presented here has two different worksheets, the first one contains a classic 2D Lissajous figure and the second one has a 3D Lissajous pattern obtained from three different…

#### Phase Lock Loop (PLL)

09/28/2010

This is an Excel workbook containing a dynamic model of a Phase Lock Loop. [sociallocker][/sociallocker]

#### Fourier Transform

09/24/2010

This is an Excel workbook calculating the Fourier transform of a signal. [sociallocker][/sociallocker]