Ic Vs Vbe. At the point corresponding to 0 5 of the maximum dc current gain hfe note the coordinate for the collector current ic. It seems like in the active region vbe vs ic curves gets steeper with an increasing vce.
Vbe 0 6v vt kt q 8 6173324 10 5 t v k i tried to plot the function for temperature from 55 to 125c or 218 to 398k. Ic vs vbe with vce 1 5v the value for gm can be extracted from this plot. Does it go up down or stay the same and why.
Does it go up down or stay the same and why.
On the ic vbe graph find the point corresponding to this coordinate for ic on the curve used in steps 1 to 4. Hfe graph from the previous section locate the ic hfe curve at the base temperature that was used to enter data on the third tab of this dialog box. The book page 12 show the plot of collector current ic vs temperature at fixed vbe 600mv. The first part of the equation is has many dimensional terms.
