Mensaje de error

  • Deprecated function: The each() function is deprecated. This message will be suppressed on further calls en menu_set_active_trail() (línea 2394 de /home1/montes/public_html/drupal/includes/menu.inc).
  • Deprecated function: The each() function is deprecated. This message will be suppressed on further calls en book_prev() (línea 775 de /home1/montes/public_html/drupal/modules/book/book.module).
  • Deprecated function: implode(): Passing glue string after array is deprecated. Swap the parameters en drupal_get_feeds() (línea 394 de /home1/montes/public_html/drupal/includes/common.inc).

Cuestion 7 (Diodos, pequeña señal)

Solapas principales

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La tension de rizado de la salida viene dada por:

\begin{displaymath}v_{rizado}=20\,i+v_{o}\end{displaymath}

 

\begin{displaymath}i=\frac{v_{rizdo}-v_{o}}{20}=\frac{1-10\,10^{-3}}{20}=49.5\,mA_{pp}\end{displaymath}

 

\begin{displaymath}v_{o}=\frac{r_{d}\,R_{L}}{R_{L}+r_{d}}\,i\end{displaymath}

 
 

\begin{displaymath}v_{o}\,(R_{L}+r_{d})=(r_{d}\,R_{L})\,i\end{displaymath}

 
 

\begin{displaymath}v_{o}\,R_{L}+v_{o}\,r_{d}=(r_{d}\,R_{L})\,i\end{displaymath}

 
 

\begin{displaymath}v_{o}\,R_{L}=(r_{d}\,R_{L})\,i-v_{o}\,r_{d}\end{displaymath}


La resisntencia dinamica maxima en el diodo zener es:

\begin{displaymath}r_{d}=\frac{v_{o}\,R_{L}}{R_{L}\,i-v_{o}}=\frac{10\,10^{-3}\cdot 100}{100\cdot 49.5\,10^{-3}-10\,10^{-3}}=0.202\,\Omega\end{displaymath}


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