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# q09 - V 2 and V TO = − 4V For the Zener diode V Z = 4 7V...

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ECE 3050 Analog Electronics Quiz 9 March 11, 2009 Professor Leach Name Instructions. Print your name in the space above. Honor Code: I have neither given nor received help on this quiz. Initials 1. A V BE multiplier circuit is shown. One of the BJT’s is connected as a diode. If β = and V BE = 0 . 65 V for each BJT and I = 3 mA , solve for R 1 and R 2 for V = 3 . 5 V and I 1 = 0 . 85 I . V BE 0.65 I 0.003 V 3.5 I 1 0.85I . R 1 2 V BE . I 1 R 1 5.098 10 2 = R 2 V 2 V BE . I 1 R 2 8.627 10 2 = 2. A current source is shown. For the JFET, I D = β FET ( V GS V T O ) 2 , where β FET = 0 . 3 mA / V

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Unformatted text preview: / V 2 and V TO = − 4V . For the Zener diode, V Z = 4 . 7V . For the BJT, β BJT = 99 and V BE = 0 . 65V . (a) Solve for the current through the Zener diode if I O = 2mA .. (b) Solve for the value of R E for I O = 2mA . 1 β FET 0.0003 V TO 4 V Z 4.7 β BJT 99 V BE 0.65 I O 0.002 α BJT β BJT 1 β BJT I Z β FET V TO 2 . I O β BJT I Z 4.78 10 3 = R E V Z V BE I O α BJT R E 2.005 10 3 = 2...
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q09 - V 2 and V TO = − 4V For the Zener diode V Z = 4 7V...

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