Zener Diodes: Ripple Effect & Load Line Analysis

Second Approximation of a Zener Diode

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Effect on Ripple in Zener Regulators

Problem-7

\[\begin{aligned} \text{change in load voltage}~\Delta V_{L} & =I_{Z}R_{Z}=(20 \mathrm{mA})(8.5 \Omega)=0.17 \mathrm{V} \\ \text{load voltage (second approx.)}~V_{L} &=10 \mathrm{V}+0.17 \mathrm{V}=10.17 \mathrm{V} \end{aligned}\]

Zener Drop-Out Point and Worst-Case Conditions

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Problem-8

\[\boxed{ R_{S(\max)} = \left( \frac{V_{S(\min)}}{V_Z} - 1 \right) R_{L(\min)}} \qquad \boxed{R_{S(\max)} = \frac{V_{S(\min)} - V_Z}{I_{L(\max)}}}\]

Zener Diode - Maximum Power and Current

Zener Diode - Load Line Analysis

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