zephyr141
  • zephyr141
circuits. help please.
Engineering
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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zephyr141
  • zephyr141
Determine the value of Vout for circuits a and b.|dw:1441074230030:dw||dw:1441074398505:dw|
zephyr141
  • zephyr141
i'm a little stuck here. i kind of blanked on how to start...
zephyr141
  • zephyr141
so i know that a Si diode has a 0.7 V drop and a Ge diode has a 0.3V drop. so i'm confused as to what happens afterwards. at the 2kOhm resistor.

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KenLJW
  • KenLJW
Can't do the first for lack of input Assuming Si on voltage or .7 volts ID = (10 - .7)/(1.2 +4.7) mA = 1.58 mA If this is sufficient for ID on then Vo = 1.58X4.7 V = 7.45 V
zephyr141
  • zephyr141
whoops. the first one has an input of 12V
zephyr141
  • zephyr141
so then Vo for the first one would end up being about 9.2V?
KenLJW
  • KenLJW
Yes, apparantly you got the idea, more accuarate analysis would entail using the Ideal diode with the specification of diode. Could be tricky but necessary if one is to have a signal input as well as DC, you will need to fine the diode signal resistance. This is used as a demodulator ciruit generally for Ampitude Modulation, AM

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