Feedback biasing

The DC output voltage $V_{outDC}$ is:

\begin{equation} V_{outDC}=V_{ref} \end{equation}

The voltage transfer $A_v$ from source to load is:

\begin{equation} A_{v}{\left(s \right)}=\frac{C_{a} \left(A_{v} C_{b} R s^{3} + s^{2}\right)}{g_{B} \left(\frac{C_{a} C_{b} R s^{3}}{g_{B}} + s \left(A_{v} C_{b} R + C_{a} R_{s}\right) + 1 + \frac{s^{2} \left(A_{v} C_{a} C_{b} R R_{s} g_{B} + C_{a}\right)}{g_{B}}\right)} \end{equation}

For high frequencies this can be written as:

\begin{equation} A_{v}{\left(\infty \right)}=A_{v} \end{equation}

The standard deviation of the output voltage equals that of the reference voltage::

\begin{equation} \sigma_{Vout}=\left|{V_{ref}}\right| \left|{\sigma_{V}}\right| \end{equation}

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Last project update: 2024-10-20 16:54:18