Magnitude resistors Ra and Rb in related series determining how much current Ib the cut point Q. Large Ib flows usually listed on the data sheet used transistors. While resistors Ra and Rb were installed to determine the bias currents. Next line load circuit can be described by a formula them. Line load on this amplifier determined by the resistor Rc and Re from the formula VCC = VCE + ICRC + IeRe. If Ie = Ic, it can be simplified into VCC = VCE + Ic (Rc + Re).
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