Diode Circuit Analysis: Get Expert Help Now!

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SUMMARY

The discussion focuses on analyzing a diode circuit to determine the minimum output voltage (Vout) when the input current (Iin) is -2.5 mA. Participants emphasize the importance of understanding diode behavior, specifically that it does not conduct in one direction and has a forward voltage drop of 0.8V when conducting. A suggested approach includes sketching a sine wave to represent Iin and analyzing various points to derive Vout. This method aids in visualizing the relationship between input current and output voltage in diode circuits.

PREREQUISITES
  • Understanding of diode characteristics, including forward voltage drop and conduction behavior.
  • Basic knowledge of circuit analysis techniques, particularly for nonlinear components.
  • Familiarity with sine wave representation in electrical engineering.
  • Ability to interpret and analyze circuit diagrams.
NEXT STEPS
  • Study diode circuit analysis techniques using tools like LTspice for simulation.
  • Learn about the impact of different input current values on diode behavior.
  • Research the concept of load lines in diode circuits to determine operating points.
  • Explore the use of oscilloscopes to visualize voltage changes across diodes in real-time.
USEFUL FOR

Electrical engineering students, circuit designers, and anyone involved in analyzing or designing diode circuits will benefit from this discussion.

woohs1216
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< Mentor Note -- Thread moved to Homework Help from EE forum >[/color]

hi guys
Screen Shot 2014-11-18 at 9.03.31 PM.png

I am studying on diode circuit but i cannot really analyse a circuit with a diode.
I understand that the question is asking minimum Vout so the current source input should be -2.5mA but i cannot go beyond that.

Can anyone help me on this question?
 
Last edited by a moderator:
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Hi woohs1216. http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gif

I think you should take a sheet of paper, turn it in landscape mode, and draw 1 cycle of a large sinewave. This can represent Iin. Mark half a dozen points on that sinewave and then for each of these current values analyse the circuit determining those parameters of interest that will help you in plotting Vout and finally being able to answer the question.

Remember, the diode does not conduct current in one direction, and in the other direction it does conduct but has 0.8v across its terminals while it is conducting current.

Good luck with your studies!
 
Last edited by a moderator:
woohs1216 said:
< Mentor Note -- Thread moved to Homework Help from EE forum >

hi guys
View attachment 75596
I am studying on diode circuit but i cannot really analyse a circuit with a diode.
I understand that the question is asking minimum Vout so the current source input should be -2.5mA but i cannot go beyond that.

Can anyone help me on this question?
Right, minimum output voltage occurs when iin = -2.5 mA.
What is the diode doing then?
What is the voltage at the resistor?
Finally, what is the output voltage?
 

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