lesson 4 2010 zener diodes with activities

lesson 4 2010 zener diodes with activities - Zener and...

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Unformatted text preview: Zener and Light-Emitting Diodes Lesson 4 Zener and Light-Emitting Diodes Objective: after learning this section, you will be able to: Draw and interpret the characteristic of a zener diode; Draw two electric models of the zener diode; Analyze zener regulator circuits and determine if voltage regulation is obtained; Interpret ratings on a zener data sheet; Select and use a light-emitting diode. Characteristic Reverse breakdown operation Breakdown characteristics V Z @ I ZT I ZT I ZK I ZM or Power P (I ZM = P/V Z ) Z Z = V Z / I (1/slope) Zener Diode Symbol An od e (A ) Ca tho de (K ) Electric Models Ideal Zener Practical Zener Vz- + Zz Vz- + ( 29 ZT Z Z ZT Z I I Z V V- + = Activity 1 For the circuit on the right, find the Zener current and the power dissipated by the Zener diode for the following values of the load R L : 12 k 3 k 1 k Use the ideal Zener model and verify if the Zener is in breakdown in each case....
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lesson 4 2010 zener diodes with activities - Zener and...

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