Upon running this application, the program will exit the desktop and display another screen with a question mark in the middle and a commands panel on the right. The whole program can be operated with the MOUSE.
Select the desired component by clicking (once) on the component name with the select button. If you click on the component name again the component will be rotated by 90 degrees. The component can then be placed anywhere on the screen using the select button or removed using the adjust button.
Once you have positioned all the components you must join them together. This is done using the NODE option, which will draw connecting lines (or points). You can terminate a connecting line by clicking the menu button.
Having done this, it is necessay to connect all the electrical supply lines and ground with the earth sign. For the purpose of continuous supply calculation they are earthed by means of filter capacitors. They are therefore to be connected to common earth. At the end of the connection insert the entry and exit points. The program controls and shows if you have forgotten any connection. It is possible to insert one point only for ENTRY and EXIT, if your circuit has many exits, you have to make many times an analysis shifting each time the exit point.
It is necessary to insert all the values to all the R and C. Go to Value and then on the component and press the left key. In the lower window press the value Kx1000, Mx1000000, all the resistances are in ohm, the condensors are PICO FARAD, the inductances MicroHenry. The differential amplifiers and transistors have a default and it is not necessary to insert the TYPE. After having set the VALUE you can shift it so as it is more legible with the POSITION command. Point the centre of the component and not the associated writing, and a little hand will appear for moving of the value. When you have finished setting up your circuit, you can save it by selecting the FILES option.
LOADING FROM DISC
On the disc some circuit examples are present and they are rather simple, go to FILES and with the pointer (cursor) go along the list on the right of the screen and you will see the layout, pressing the right key of the MOUSE they are loaded. Select EXIT to return to the EDITOR, you can use the position of the layout on the window pointing to SHIFT and using the CURSORS. It is possible to print either the layout or the reply curve by connecting a compatible EPSON printer with 9 pointers and selecting the option HARDCOPY. You wil be asked whether small or large and the window will be printed straight away.
ANALYSIS AND FREQUENCY
After having carried out your frame you can make a frequency phase analysis pointing to ANALYSIS, first you have to check that there are nodes (branch points) and all the values of the components and if a node is missing it will display it. If a value is absent it is given 1 (OHM if R 1 pico F if C etc).
If it is all correct a logarithmic scale appears in dB frequency. You can in whatever way you can change either the frequencies or the dB field.
When you are happy with the settings you can select the to CALCUATE option and you will see some pointers on the right, the white points are the gain and the red the PHASE. It's possible to interrupt the calculation pressing SPACE. The Command INTERPOLATE unites with a line various points and eliminates round circles. Precision brings together the very tight band filter points. You must remember that the calculation time is proportional to the square of the number of components for precision. It is possible to change the VERTICAL scale without repeating the Calculation. The scales can either be linear or logarithmic with a field of frequency from 1HZ to 1GHZ e the scale of GUADAGNO (save or gain) can vary between 1000 to + 1000dB.
Try to load a layout from the disc and to change some value to see how the frequency and curves in phase change.
