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NdeveR
 2 years ago
H4P1: Zener Regulator
A nonideal voltage source can be modeled by a series combination of an ideal DC voltage source, a resistance, and a smallsignal voltage source. The smallsignal source is included to represent the noise inherent in the source. This model is illustrated in the figure below:
In practice, connecting the nonideal voltage source to a load may result in undesirable effects due to the noise voltage vo appearing across the load.
This problem studies such effects and how a Zener diode may be used to ameliorate the problem.
Assume that VI=13.0V, RIN=1kΩ, and vi=20.0m
NdeveR
 2 years ago
H4P1: Zener Regulator A nonideal voltage source can be modeled by a series combination of an ideal DC voltage source, a resistance, and a smallsignal voltage source. The smallsignal source is included to represent the noise inherent in the source. This model is illustrated in the figure below: In practice, connecting the nonideal voltage source to a load may result in undesirable effects due to the noise voltage vo appearing across the load. This problem studies such effects and how a Zener diode may be used to ameliorate the problem. Assume that VI=13.0V, RIN=1kΩ, and vi=20.0m

This Question is Closed

NdeveR
 2 years ago
Best ResponseYou've already chosen the best response.0there is more to this problem: and here are some pictures Again, we calculate vo (i.e. output noise) and VO (i.e. DC output voltage) for RL=2kΩ and RL=4kΩ for this new circuit. Hint: Your first job here is to determine which of the three regions of the piecewiselinear characteristic of the Zener is the one containing the operating point: we suggest you sketch a load line, but be very careful about the signs. Once you have determined where the operating point is, you can model the Zener in the circuit with a series combination of an independent voltage source and a resistor.

NdeveR
 2 years ago
Best ResponseYou've already chosen the best response.0so far, i have only been able to solve for RL=2kohm, Vo is 8.6667 volts. if anyone could explain this one i'd appreciate it.

Sparkle
 2 years ago
Best ResponseYou've already chosen the best response.1What about the last bit, minimum value of RL..Im getting it wrong.

nick67
 2 years ago
Best ResponseYou've already chosen the best response.5@Sparkle could you better explain your problem, pls :)

dany
 2 years ago
Best ResponseYou've already chosen the best response.0Teh minimum value of RL is the value of RL when the voltage across the RL is equal to that of Vz

yahya.aamir
 2 years ago
Best ResponseYou've already chosen the best response.0@nick67, I tried looking at the your explanation. But couldn't figure out the answer when the Zener diode is implemented. Could you please explain it again?

nick67
 2 years ago
Best ResponseYou've already chosen the best response.5@yahya.aamir Hi, you should separate DC and AC analysis, this way: dw:1349534424806:dw

yahya.aamir
 2 years ago
Best ResponseYou've already chosen the best response.0Thanks @nick67. I really appreciate it. :)

mahi1431
 2 years ago
Best ResponseYou've already chosen the best response.0hey plz explain me clearly

nick67
 2 years ago
Best ResponseYou've already chosen the best response.5@Nurali could you post the question in a separate post ? I'm quite sure that Stefo should be very interested, too; he has big knowledge about FETs

ammanjordan
 2 years ago
Best ResponseYou've already chosen the best response.0Can we have the results as results (Numbers)?

nick67
 2 years ago
Best ResponseYou've already chosen the best response.5@ammanjordan from http://openstudy.com/codeofconduct : Give Help, Not Answers I will encourage and guide those needing help, and not just give them an answer

ammanjordan
 2 years ago
Best ResponseYou've already chosen the best response.0Thank nick67, solving the problem, i found the value of Vo for RL=ΚΩ, also, i found the same Vo when RL = 4ΚΩ. How i can find the relevants u0 when RL=2 and 4 ΚΩ?

ammanjordan
 2 years ago
Best ResponseYou've already chosen the best response.0Hi guys, can i have some method to find vo for RL= 2 and 4 ΚΩ. thanks.
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