Definitions for load line

This page provides all possible meanings and translations of the word load line

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  1. load line, Plimsoll line, Plimsoll mark, Plimsoll(noun)

    waterlines to show the level the water should reach when the ship is properly loaded

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  1. Load line

    A load line is used in graphical analysis of nonlinear electronic circuits, representing the constraint other parts of the circuit place on a non-linear device, like a diode or transistor. It is usually drawn on a graph of the current vs the voltage in the nonlinear device, called the device's characteristic curve. A load line, usually a straight line, represents the response of a linear circuit connected to the nonlinear device in question. The operating point of the circuit are the points where the characteristic curve and the load line intersect; at these points the current and voltage parameters of both parts of the circuit match. The example at right shows how a load line is used to determine the current and voltage in a simple diode circuit. The nonlinear diode is in series with a linear circuit consisting of a resistor and a voltage source. The graph, representing voltage across the diode VD versus current I through the diode, is an exponential curve. The load line represents the relationship between current and voltage in the linear part of the circuit. Since the current going through the three elements in series must be the same, and the voltage at the connection of the resistor and diode must be the same, the operating point of the circuit will be at the intersection of the curve with the load line.


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