Difference between revisions of "220-A1.2"
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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. | 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 <math>Z_1 = R_1 \| C_1</math> and <math>Z_2 = R_2 \| 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: |
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== A Lossy LC Tank == | == A Lossy LC Tank == | ||
== A Simple Switched-Capacitor Circuit == | == A Simple Switched-Capacitor Circuit == | ||
Revision as of 09:58, 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:
