Latest Filters Articles and Videos

Learn all about Akerberg-Mossberg Filters and how to plot the frequency response using MATLAB.

Learn all about Akerberg-Mossberg Filters and how to plot the frequency response using MATLAB.

Resolution and sampling rate are two important factors to consider when selecting an analog-to-digital converter (ADC).…

Resolution and sampling rate are two important factors to consider when selecting an analog-to-digital converter (ADC). In order to understand these fully, concepts such as quantisation, and the Nyquist Criterion must be understood to a certain degree.

This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel…

This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel to your sound system and some LEDs.

Use a laser and a photo resistor to build a laser based point-to-point communication system. The best part? It's under $10.

Use a laser and a photo resistor to build a laser based point-to-point communication system. The best part? It's under $10.

Part 2 in the “How to Make an EFM8-Based Sound Synthesizer” series.

Part 2 in the “How to Make an EFM8-Based Sound Synthesizer” series.

All of our previous circuits dealt with opamps using resistors in the feedback loop. What happens when we start swapping…

All of our previous circuits dealt with opamps using resistors in the feedback loop. What happens when we start swapping out resistors for other passive components?

This article will go into a bit of the background of FSK and demonstrate writing a simulator in Python.

This article will go into a bit of the background of FSK and demonstrate writing a simulator in Python.

Part 3 in the “How to Make an Ambient Light Monitor” series. The project continues by building an ambient light…

Part 3 in the “How to Make an Ambient Light Monitor” series. The project continues by building an ambient light sensor circuit on a breadboard, digitizing the circuit’s output signals, and interpreting the digitized measurements.

The effect of noise and Power Supply Rejection Ratio (PSRR) in Low-dropout (LDO) regulators.

The effect of noise and Power Supply Rejection Ratio (PSRR) in Low-dropout (LDO) regulators.

Learn about various power electronic devices which act as solid-state switches in the circuits, meaning they act as a…

Learn about various power electronic devices which act as solid-state switches in the circuits, meaning they act as a switch without any mechanical movement.