Join Barron Stone for an in-depth discussion in this video Filter signals, part of Electronics Foundations: Semiconductor Devices.
- Building a passive first-order low-pass…or high-pass RC filter…is as simple as connecting a single resistor…in series with a capacitor.…When the input signal is applied to the resistor…and the output is measured across the capacitor…it creates a low-pass filter.…And when the location of the resistor and the capacitor…are smocked with each other…so that the output is measured…across the resistor,…it produces a high-pass filter.…The advantage of these passive circuits…is that they're easy to build,…it only takes two components,…and they're easy to design.…
The equation for the cutoff frequency…is simply one over two Pi times the resistance…and the capacitance values.…Now, a major disadvantage of these passive RC circuits…is that since they only use passive components…the output signal can never be greater…than the input signal.…At the very best the input and output…can have the same power.…The attenuation can really start to add up…when we need to combine multiple filters together.…Additionally, the impedance of whatever load…
- Semiconductor materials
- Diode applications
- Rectifying a signal
- Detecting the signal peak
- Protecting against large signals, reverse current, and flyback voltage
- Special purpose zener diodes, Schottky diodes, and photodiodes
- NPN and PNP bipolar junction transistors
- Using a BJT as a switch
- Field effect transistors
- Differences between BJTs and MOSFETs
- Operational amplifiers
- Op-amp applications
- Comparing signals
- Buffering signals
- Amplifying signals
- Filtering signals
- Combining signals
Skill Level Intermediate
Learning to use MakerBot 3D Printerswith Kacie Hultgren1h 5m Appropriate for all
2. Diode Applications
3. Special Purpose Diodes
4. Bipolar Junction Transistors
5. Transistor Applications
6. Field Effect Transistors
7. Operational Amplifiers
Feedback circuits6m 30s
8. Op-Amp Applications
Next steps1m 9s
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