The zener diode is a 75 v 500 mw device and the supply


A simple voltage stabiliser circuit is shown in Fig. 9.20 . The zener diode is a 7.5 V, 500 mW device and the supply voltage is 12 V. Calculate

(a) a suitable value for RS, and

(b) the value of zener current when RL = 470 Ω .

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Electrical Engineering: The zener diode is a 75 v 500 mw device and the supply
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