Solving a DC problem

For educational user, TINA has two special modes. In examination mode, the student has to solve a series of problems (a problem set) either by traditional pencil-and-paper methods or by using the Interpreter and analysis functions. When the student finds the answer, the program sends it immediately to the teacher's machine, where it is promptly displayed by the TSuper supervision utility. In training mode, operation is similar, except that TINA gives the student feedback about the correctness of his answer, and the student may turn to the Advisor to get help prepared by the teacher.

The following example is a DC problem. The problem requires the student to calculate the voltage on the resistor R2. Clicking on the Voltage division entry in the examination panel, the circuit appears.

There are two ways to solve problems in TINA’s training & examination mode. The first is by using the Result field in the Training & Examination panel, while the second is by using the Interpreter directly.

Using the Interpreter directly, we can use the Result and the Submit functions to pass the result value to the training and examination module of TINA.

Using the Interpreter in the Result field

In the result field, you may type in not only a number, but also a formula based on the symbols in the circuit. In this case, the Interpreter is automatically ( internally ) invoked and evaluates the formula.

Submitting a solution from the Interpreter window

After clicking the Interpreter button, the Interpreter window opens. Remember that our example problem is to calculate the voltage on the resistor R2. We define two variables (I and U2) to hold the current and the voltage on R2 using Ohm’s law. Using the Submit function, we pass the result to the examination module.

The solution with the Interpreter,

I := VG/( R1+R2 )

I=[2]

U2 := I*R2

U2=[60]

Submit( 60 [V] )