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15 November, 02:12

D 4.60 A designer requires a shunt regulator of approximately 20 V. Two kinds of zener diodes are available: 6.8-V devices with rz of 10 and 5.1-V devices with rz of 25. For the two major choices possible, find the load regulation. In this calculation neglect the effect of the regulator resistance R.

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  1. 15 November, 02:31
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    a) three 6.8 V zener provide 3*6.8=20.4 V with 3*10=30Ω resistance neglecting R, we have load regulation = -30 mv/ma

    b) for 5.1 v zener we use 4 diodes to provide 20.4 V with 4*25=100Ω resistance load regulation = -120 mv/ma
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Home » Engineering » D 4.60 A designer requires a shunt regulator of approximately 20 V. Two kinds of zener diodes are available: 6.8-V devices with rz of 10 and 5.1-V devices with rz of 25. For the two major choices possible, find the load regulation.
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