Capacitor Voltage Rating Margin Calculator – Derating Check
The capacitor voltage rating margin calculator give you confidence to know whether or not a cap is capable of handling its true working voltage. Just … Read More
JSCalc
Capacitor Code to Farad Calculator: Decode 104, 223, 471
You frequently see a small number etched onto those little ceramic caps. Often it’s something like 104, or maybe 223, or 471. They don’t normaly … Read More
Decoupling Capacitor Value Calculator – Bypass Cap Sizing
Digital boards glitch or run clean when loaded. Depending on which decoupling capacitor you choose for them. When an FPGA or microcontroller changes state, it … Read More
Smoothing Capacitor Size Calculator – PSU Filter Cap Sizing
An unregulated DC power supply performs according to its reservoir capacitor. Choose a bad one (too small) and you have ripple and sagging voltage rails. … Read More
Capacitor Ripple Voltage Calculator – Vpp, Vrms & ESR
The transformer is humming on the bench because you built a power supply. You soldered in a big old electrolytic capacitor from an old computer … Read More
Parallel Inductance Calculator – Total Inductance of Coils
One question that trips up nearly every power-supply or filter design: What single inductance does it behave like if coils are placed in parallel and … Read More
Series Inductance Calculator – Add Coils in Series with Coupling
Got a box of inductors? Need a certain value that isn’t in the box? Wire ’em all together and hope for the best, right? One … Read More
Impedance Magnitude Calculator – Series RLC |Z| and Phase
When looking at an AC circuit schematic, you might feel like resistance is lying to you, but impedance is actualy the quantity that captures everything … Read More
Inductive Reactance Calculator – XL = 2 pi f L for Coils
Until you pass an alternating current through a coil of wire, that’s just copper wire. When you pass current through it, the coil oppose changes … Read More
Capacitive Reactance Calculator – Xc = 1/(2 pi f C)
This is a capacitive reactance calculator. This is another useful calculator based off a basic relationship among AC electronics. Xc is capacitive reactance, or how … Read More