Both the knee voltage and knee current of a Zener diode are two
critical parameters marking the onset
of Zener breakdown. How to you incorporate these two parameters
in the equivalent circuit of Zener
diode (The equivalent circuit of Zener diode that we developed
in lectures does not take into account
of the knee voltage and knee current)
Design and simulate a regulated power supply using a bridge
rectifier, capacitors, and zener diode ( no integrated circuit).
The source voltage is 110 plus or minus 10 Vrms, 60 Hz frequency.
The output voltage is as follows (plus or minus 5%) : 4.5 V and 12
V
It has to be done on a breadboard. The rating of the adapter
will be 12W and 5% regulation. To protect the circuit include a
surge protection and fuse in the circuit...
3.- Design a variable voltage source from 1.25 to 20V with the
LM317 voltage regulator. This source will be powered by 127Vac @
60HZ from CFE. Determine the following:
a) complete schematic circuit.
b) Diodes that support VPI and load current.
c) required transformer (turns ratio), not to exceed the
regulator's maximum input voltage. (See data sheet.
d) Filter C. Uses an RF of 1%
e) LM 317 regulator circuit. Consider the following: calculate the
adjustment resistances, and that, when...
You are a bank regulator working for
the Federal Reserve. It is your job to see whether banks are
solvent or insolvent, liquid or illiquid. Find the net worth of
each bank below and fit them into one of the following four
categories. Briefly explain your answers.
I.Liquid and Solvent (best).
II.Illiquid and solvent (probably needs
short-term loans from other banks or from the Fed).
III.Liquid but insolvent (should be
shut down immediately; could fool people for a while...
current vs. voltage curve for the 1n4148 diode. The DC sweep should
be from 0.01 to 1.5 V and in steps of 0.01 V. The temperatures that
should be simulated are -80, 0, 27, and 100
1. Circuit Diagram
2. Relevant Output Graphs
3. Analysis and explanation of the results
Construct a sketch to show the working of an air
handler of the blow-through type with cooling and
heating coils in series? Clearly label all parts and components and
briefly explain its working?
Q) design and analyze a current limited series voltage
regulator that includes op amp and 8V zener diode . The regulated
output voltage should be 40V and the output current should be
limited to 800mA . The zener current should be 9mA when Vi =
35V.
(solve neatly)