5. The circuit given below is a regulated power supply. Assume that the transistor is silicon with heE = 100, and that the zener diode is a 5.7 V device with %3D an Iz= 10 mA %3D a) Consider initially that Vcc 20 volts and find each of the indicated quantities %3D RB i) IRB %3D 358 ohms 01 ii) VB %3D 01 iii) VE RL %3D 25 iv) Ic v) IB %3D vi) Iz = b) Consider now that the supply voltage, Vcc, ripples between 15 and 20 volts. Determine the largest allowed value of Rp such that the diode remains solidly Zenering.

5. The circuit given below is a regulated power supply. Assume that the transistor is silicon with heE = 100, and that the zener diode is a 5.7 V device with %3D an Iz= 10 mA %3D a) Consider initially that Vcc 20 volts and find each of the indicated quantities %3D RB i) IRB %3D 358 ohms 01 ii) VB %3D 01 iii) VE RL %3D 25 iv) Ic v) IB %3D vi) Iz = b) Consider now that the supply voltage, Vcc, ripples between 15 and 20 volts. Determine the largest allowed value of Rp such that the diode remains solidly Zenering.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter30: Dc Motors

Section: Chapter Questions

Problem 6RQ: What is CEMF?

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