EBK 3N3-EBK: INDUSTRIAL MOTOR CONTROL
7th Edition
ISBN: 9780176919962
Author: Herman
Publisher: VST
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Textbook Question
Chapter 58, Problem 1RQ
How is a zener diode connected in a circuit as compared to a common junction diode?
Expert Solution & Answer
To determine
The way in which the zener diode is connected in the circuit as compared to the junction diode.
Explanation of Solution
The PN junction is commonly known as the diode. The diode the electronic device that acts as a swtich and conducts in one direction only.
To forward bias the diode the P terminal is connected to the ANODE and the N type is connected to the cathode. Reverse of this is done to reverse bias the diode.
The symbol for the diode is shown below.
The diode operates like a swtich, when the diode is forward biased the current flows through it in one direction only that is from P terminal to N terminal. To reverse the diode the cathode is connected to P and anode to N, for ideal condition the diode do not conduct in reverse but there is a small amount of current through it that is called the leakage current.
The zener diode is the diode that can operate in the reverse biased and the region of operation in that case is called the zener region. The diode conducts when the diodes breaks down in the reverse direction known as avalanche.
Therefore, the zener diode is connected in the circuit in reverse polarity as compared to common junction diode.
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29)…
Auto Controls
A union feedback control system has the following open loop transfer function
where k>0 is a variable proportional gain
i. for K = 1 , derive the exact magnitude and phase expressions of G(jw).
ii) for K = 1 , identify the gaincross-over frequency (Wgc) [where IG(jo))| 1] and phase cross-overfrequency [where <G(jw) = - 180]. You can use MATLAB command "margin" to obtain there quantities.
iii) Calculate gain margin (in dB) and phase margin (in degrees) ·State whether the closed-loop is stable for K = 1 and briefly justify your answer based on the margin . (Gain marginPhase margin)
iv. what happens to the gain margin and Phase margin when you increase the value of K?you
You can use for loop in MATLAB to check that.Helpful matlab commands : if, bode, margin, rlocus
NO COPIED SOLUTIONS
Chapter 58 Solutions
EBK 3N3-EBK: INDUSTRIAL MOTOR CONTROL
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- Auto Controls A union feedback control system has the following open loop transfer function where k>0 is a variable proportional gain i. for K = 1 , derive the exact magnitude and phase expressions of G(jw). ii) for K = 1 , identify the gaincross-over frequency (Wgc) [where IG(jo))| 1] and phase cross-overfrequency [where <G(jw) = - 180]. You can use MATLAB command "margin" to obtain there quantities. iii) Calculate gain margin (in dB) and phase margin (in degrees) ·State whether the closed-loop is stable for K = 1 and briefly justify your answer based on the margin . (Gain marginPhase margin) iv. what happens to the gain margin and Phase margin when you increase the value of K?you You can use for loop in MATLAB to check that.Helpful matlab commands : if, bode, margin, rlocus NO COPIED SOLUTIONSarrow_forwardAuto Controls Hand sketch the root Focus of the following transfer function How many asymptotes are there ?what are the angles of the asymptotes?Does the system remain stable for all values of K NO COPIED SOLUTIONSarrow_forward-400" 150" in Datum 80" 90" -280"arrow_forward
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