This site useful for the competitive exams, UPSC, IES, IAS, GATE and all PSU companies in electrical engineering. Saturday, May 21, 2011. Control Systems- Block Diagrams and Signal Flow Graphs. Control Systems- Block Diagrams and Signal Flow Graphs. The block diagram modeling may provide control engineers with a better understanding. Of the composition and interconnection of the components of a system. 8226; Input or reference signals.

To learn about Q-point, first we will learn about DC load line. How is DC load line plotted? The fig. shown below is of a bipolar junction transistor connected in common emitter configuration. Consider the output loop of the transistor and applying Kirchhoffâ s voltage law to output circuit.

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