Difference between revisions of "220-A1.2"
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Let <math>Z_1 = R_1 \| \frac{1}{j\omega C_1}</math> and <math>Z_2 = R_2 \| \frac{1}{j\omega C_2}</math>, then the output voltage can be expressed as: | Let <math>Z_1 = R_1 \| \frac{1}{j\omega C_1}</math> and <math>Z_2 = R_2 \| \frac{1}{j\omega C_2}</math>, then the output voltage can be expressed as: | ||
| − | {{NumBlk|:|<math>v_{out}=\frac{ | + | {{NumBlk|::|<math>v_{out}=\frac{Z_2}{Z_1 + Z_2}\cdot v_{in}</math>|{{EquationRef|1}}}} |
== A Lossy LC Tank == | == A Lossy LC Tank == | ||
== A Simple Switched-Capacitor Circuit == | == A Simple Switched-Capacitor Circuit == | ||
Revision as of 10:02, 7 August 2020
- Activity: Simulating simple RLC circuits
- At the end of this activity, the student should be able to:
- Run DC, AC, and transient simulations using ngspice.
A Wideband RC Voltage Divider
One way to build high-speed circuits with relatively large input impedances and capacitances is to use a simple RC voltage divider, as shown in the figure below. This RC divider is commonly found in oscilloscope 10X probes.
Let and , then the output voltage can be expressed as:
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(1)
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