TINA_Advanced_Topics.pdf

You can also add more outputs using the post

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Characteristic dialog window. You can also add more outputs using the post-processor. Plotting a result as a function of a range of resistor values is called DC parameter sweeping. There are several ways to assign a component to serve as the input. 1. In TINA Version 6, the simplest way is to select the part from the Input list box of the DC Transfer Characteristic dialog window. Once selected, TINA will remember it and it will be saved as the selected input in your circuit file. 2. Use the I/O state field of generators and sources to assign them as input. 3. You can also use the Insert/Input command to assign an input to a source/generator or to a resistor. First select the Insert/Input command and see a special I + shaped cursor appear. Click the first node of the component to be selected and hold down the mouse button while you drag the input to the other node. The Insert/Input command is not the easiest way to select a DC Transfer input: method one or two is preferred. To assign an output, use any appropriate meter from the Meters Toolbar (Voltage Pin, Voltage Meter, Ampere Meter, Power Meter, etc.) or use the Insert/Output command. In most cases, a meter is the best choice; however, if your output is on nodes far from each other, the Output command might be useful. After you have assigned at least one output, you can invoke the Analyis/DC Analysis/DC Transfer Characteristic command. The following dialog will appear: Explanation of the parameters: Number of points: The program calculates the transfer characteristic at the number of points defined. The default value is 20. Start Value and End Value: The program evenly divides the specified input range so that the number of points includes the start value and the end value. For each input point, the program calculates the output value and uses it to build the transfer characteristic. The units indicated in the square bracket correspond to that of the input ( e.g., V for a voltage generator). Normally, the input values are generated in increasing order. However, if you prefer calculation in a decreasing order, assign the greater limit of the input range to the Start value and the smaller limit to the End
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value. The order of calculation only matters with the DC characteristics of circuits with hysteresis (e.g., Schmitt trigger). Input: Here you can check and change, if desired, the input. To change the input, click the arrow in this field and the available input quantities (label names of sources and resistors in the circuit) will appear. If a component has no label, TINA will automatically label it in the form V_no_label_1. Click on the name to select it as the input. Enable hysteresis run: If this checkbox is checked, TINA will first run an analysis varying the Input quantity from the Start value to the End value, and then run an analysis from the End value to the Start value . You should use this option for components with hysteresis (where the characteristic depends on the direction of change).
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