JavaScript is turned off in this browser. The explanations, formulas and worked examples on every page are plain HTML and will read normally. The calculators themselves cannot run without it, so entering values and pressing a solve button will do nothing, and the animation on the home page will stand still.

Filters and time constants

RC and RL time constants, corner frequencies, and the first-order filters that most real designs actually use.

These calculators are in development. Below is what is being built for this category.

Coming next

RC time constant, charge and discharge curves with settling timessoon
RC low-pass and high-pass corner frequency, both directionssoon
RL time constant and corner frequencysoon
LC resonant frequency and characteristic impedancesoon
Second-order RLC: damping factor, Q and overshootsoon
Sallen-Key and multiple-feedback active filter component valuessoon
Decoupling capacitor selection against a target impedancesoon