We’re talking of course about the air-dielectric variable capacitor, the tuning element for millions of radio receivers back in the day but now long ago replaced by much flimsier polymer ...

The most difficult to source part for these radios is a variable capacitor, and not finding one in his parts bin, [Jezan] decided to make his own. This variable capacitor comes directly from a ...

I created it because I needed to simulate a "floating" variable capacitor (not referenced to ground), and didn't find any resources online. Using this model is straigth foward: There are 3 pins, 2 are ...

For example, variable caps are commonly used in radio tuning circuits and frequency control circuits. Supercapacitors, also known as ultracapacitors, are a type of capacitor that has a higher energy ...

Abstract: Modular multilevel converter (MMC) has been widely applied in HVDC systems. When MMC is applied in variable-frequency drives, the sub-module (SM) capacitor voltage fluctuation becomes ...