Software Design Class

Class E design program from Tonne Software February 9, 2019

The Windows ® program for designing Class E amplifiers

This program simplifies the design of the single-ended class E amplifier. Operation is intuitive and encourages circuit exploration.

Each of the six design parameters can be specified using a freeform entry scheme.
Each of those parameters can be "tuned" by clicking on the up and down buttons; see the graphic below. This allows instant feedback regarding what parameter affects what schematic trait.
Each parameter has a default value and entries are checked to reduce the probability of ridiculous results.
As an option the program will read a user-entered load value and match the amplifier to that value of load using an added L-network.
Data are written automatically to a "last session" file at program exit time, allowing a simplified program restart.
The program also writes a schematic (.ASC) file to drive the LTspice simulator from Linear Technology. (Tonne Software has no connection with Linear Technology.)

This program uses the revised equations presented in "QEX" for Jan/Feb 2001. They are close to but seem to be more accurate than the more-commonly used set of equations presented in "RF Design" for Summer, 1980.

Click on either image for a larger view

Source: www.tonnesoftware.com

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why does software designers and programmers use abstract classes and methods? | Yahoo Answers

Here is a simple way of understanding an Abstract Class.
Lets assume you want to program a Naval warfare game.
First you need some ships. How about an Aircraft Carrier, a Cruiser, and a Tug.
Each of the 3 ships can be a seperate Class. But the ships have things in common. For example they all have hulls, they all contain a crew, they each have a radar.
So put all the common features into another class and call it the Ship Class. This is an Abstract Class. This just means we have 'abstracted' common features out of all the other 'Concrete' classes.
Now if we created a new Class for…

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