In this video, electrical engineer Barron Stone designs a passive RC high-pass filter to remove low-frequency energy from a signal while allowing high-frequency energy to pass through. Learn how a capacitor can be used to remove unwanted DC offset from a
- [Instructor] A high-pass filter is a circuit that…attenuates or reduces any low-frequency components…of a signal, while allowing the high-frequency components…of that signal to pass through.…A high-pass RC filter can be built…using the same components as a low-pass RC filter.…The difference between the two types of filters…is that the locations of…the resistor and capacitor are swapped.…In a high-pass RC filter, the capacitor is in series…with the output, and the resistor is in parallel…with the output.…
In this configuration, I like to think of the output node…as a, an exclusive dance club,…and the capacitor is a bouncer that decides which…frequencies get to come into the club.…So when high-frequency signals come up to the bouncer,…he lowers his impedance…and he lets them right on in.…But when low-frequency signals try to get into the club,…that bouncer's going to raise his impedance…and block them.…Now, inside the club, the high-frequency energy…that got past the bouncer needs somewhere to go.…
Some of that energy might continue on…
- Reading electrical schematics
- Building circuits on breadboards
- Reviewing types of static and variable resistors
- Reading resistor color codes
- Measuring resistance with a DMM
- Measuring resistive sensors with an Arduino microcontroller
- Making electrical signal measurements with an oscilloscope
- Measuring AC voltage with a DMM
- Understanding the time domain and frequency domain
- Designing passive low-pass and high-pass filters
- Reviewing reactive RC and RL circuits
- The relationship between capacitors and inductors
Skill Level Beginner
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Learning Arduino: Pulse Width Modulationwith Rae Hoyt1h 16m Intermediate
1. Building Circuits
Read electrical schematics6m 25s
3. Resistive Circuits
4. Oscilloscope Measurements
6. Alternating Current
7. Electrical Signals
8. Reactive Circuits
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