transistors - BJT: What exactly is an AC Load line? - Electrical ...
2014年5月14日 · Because when I determine this line using the AC equivalent circuit model and KVL across the v ce loop, the load line now goes through zero on a graph. i c = - v ce / (R C // R L) Then I understand to get the true load line of the circuit, I must superimpose the AC Load line on the Q point, and preferably use the middle of the AC LL as the Q point.
diodes - what is the load line and operating point used for in ...
In the first example above (Fig. 1b), the IV curve of the voltage source (the source line) is a vertical line shifted to right in the case of positive voltage; the IV curve of the resistor (the load line) is an inclined (to right) line passing through the origin of the coordinate system. Since the voltage across both elements and the current ...
MOSFET load line - Electrical Engineering Stack Exchange
2020年9月24日 · So you can draw additional curves for Vgs higher than Vdd in the right-hand graph and the load line would intersect at an ever narrower region near Vds = 0 (which makes sense since you have a fixed resistor load to a fixed voltage and you are enhancing the MOSFET conduction more and more).
Please explain MOSFET output characteristics and load line when …
You plot the load line as if perfection were possible then you see what the MOSFET characteristic delivers to make things less than perfect. Of course you don't have to plot a load line. I don't any more; I just look at the characteristic directly and know what I want. Point (3) yes. \$\endgroup\$ –
Load-line of MOSFET when analyzing triode mode
2017年6月27日 · The load line in your graph shows what current flows (Id) over a varying Vgs. Your text describing triode mode and saturation concerns the behavior of Id over varying Vds (not Vgs) while keeping Vgs constant. Here the load line crosses the horizontal (well almost) part of the blue curves, that is the saturation region.
bjt - Load line and voltage or current gain - Electrical Engineering ...
2020年5月6日 · Move the horizontal line so that to keep it parallel to itself (translate) and observe how the operating point moves along the load line... and how its projections on the coordinate axes move. The smaller the angle between lines, the faster the operating point will move. 1. Simple dynamic (or resistor) load.
AC load line of a BJT - Electrical Engineering Stack Exchange
2020年10月26日 · The IV curve of the real voltage source is what is named "load line". When the transistor changes its collector current, the moving intersection point pictures the "load line". Its slope is determined by the equivalent internal resistance. In …
Ac load line of a transistor - Electrical Engineering Stack Exchange
2020年12月28日 · For the ac load line, the dc value of the voltage across the capacitor in parallel to the emitter resistor must be also taken into consideration (superposition). Example : Common emitter stage with Rc (collector resistor), Re (emitter resistor) and Ce in paralle to Re.
Load-line analysis derivation - Electrical Engineering Stack Exchange
The load line solution will only be as accurate as your plot of the curve. And it will further be only as accurate as you are able to discern the coordinates when viewing the plot. If you're okay with the accuracy of a load line solution, you could consider doing an automated solution this way: Choose 10 or 20 x-values for your curves.
thevenin - Finding a diode's operation point (Q-point) - Electrical ...
The load line method involves drawing a line from the maximum current that the resistor could draw to the maximum voltage that could be across the diode. The intersection of the load line and the diode curve is the operating/quiescent point. Option 1: Find the midpoint between the y-intercept and the x-intercept.