Please show all steps! Given: beta = 20, VA = infinty Volts, VCEsat = -0.2 Volts

Question

Please show all steps!

Given: beta = 20, VA = infinty Volts, VCEsat = -0.2 Volts. VCC = VEE = +15 Volts, VBB = +10 Volts. Find: Find the resistances: RB, RE and RC to establish a Q-point at: IC = 0.5mAmps, VCE=-12 Volts and VC = +1 Volts. Plot the iC versus vEC characteristic curves for a few (2 or 3) values of iB above and a few (2 or 3) values of iB below the DC bias value, IB, established in this circuit. Show the DC load line and indicate the Q-point. Using RB , RE and RC found in part a), Find the new IC and VEC if beta becomes beta = 100. Plot the iC versus vEC characteristic curves for a few values of iB above and below the new DC bias value, IB. Show the DC load line and indicate the Q-point.

Explanation / Answer

the base resistor is RB

the emitter resistor is RE

the collector resistor is RC

here,Vcc is the power supply voltage

Vbb is the base input voltage

Vee is the emitter voltage

Beta is the current gain and is usually less than unity

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