In the simple voltage regulator shown in Figure P9.53, R must maintain the Zener diode current within its specified limits for all values of the source voltage, load current, and Zener diode voltage. Determine the minimum and maximum values of R that can be used.
Vz = 5 V ± 10% rz = 15 ?
|iz |min = 3.5 mA |iz |max = 65 mA
|vS| = 12 ± 3 V |io| = 70 ± 20 mA
Analysis:
You might also like to view...
An intercooler is used to:
A. Increase the efficiency of the radiator. B. Prevent the turbocharger or supercharger from overheating. C. Cool the air from a supercharger or turbocharger before it reaches the combustion chamber. D. None of the above
The reason for incandescent lamp surge current when initially switched on is attributed to__________.
A. Lenz's law B. CEMF C. the positive temperature coefficient of tungsten D. the negative temperature coefficient of tungsten
Which of the following is LEAST-Likely to leak oil into the ground?
A. Surface mount lift B. Semi-hydraulic lift C. Axle engaging lift D. Fully hydraulic lift
Years of rigorous testing are required to ensure the safety of _____
A) crops B) wells C) pesticides D) wetlands