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Like for the capacitor you can measure the reactance or using the inductor as timing element (non exhaustive list!) …

That resistor will drain continuously your capacitor, so it will charge up and then slowly discharge. …

There is a whole technology behind but it's more-or-less made with two polarized capacitor tied together. … It cost more because it's more complex and it's somewhat of a niche market (since 99% of the times a bulk capacitor has a clearly designated bias) …

The capacitive sliders are usually done using two capacitive plates, both referred to ground (not in mutual capacitance). The trick is drawing them sloped (triangular, not rectangular). When you touch …

Here Physics: LibreTexts: 8.2: Capacitors and Capacitance You have the usual physical explanation and some horrible curve integrals that derive the capacitance of the cylinder plate capacitor, which your … Since your capacitor should be cylindrical (is it really? …

A regulator (linear or switching) needs the output capacitor for two reasons: 1) transient handling and 2) regulator stability; people often only think of the first but stability is usually more important … On the input side the capacitor is only needed to keep the regulator supplied under load transients (or its own transients, if it's a switcher) so there are usually fewer problems. …

The other thing you are missing is that there is a capacitor in the circuit. … Assuming a following high impedance stage (i.e. not a significant load) during the negative semiperiod the capacitor remains partially charged and that will alter significantly the output. …

This would be bad security practice. The usual way would be an active zeroize circuitry; your key would be kept in static ram (flip flops) and the tamper detection would actively reset them. By the wa …

In CCM we have phase 1 when the inductor charges and the capacitor supplies the load and phase 2 when the inductor supplies the load and recharges the capacitor; however in DCM the inductor has no more … remaining energy stored and the output capacitor still needs to feed the load. …

Substantially yes, it's safe if you keep the negative portion of the signal level below about 2V. Electrolytic capacitors however are horribly non linear so expect strange behaviour, also they are not …

Another issue could be voltage derating of ceramics: as the DC bias rises on the capacitor the available capacity decreases up to 50%; it's a material issue, it depends on the dielectric (only class II … This is simply solved using either a) a bigger capacitor (in Farads) or b) a bigger capacitor (in working voltage). With capacitors most of the time bigger is better, anyway. …

A big capacitor is useful if you have a bridge and a load which is not powered by a regulator since it can only relay on the cap for ripple suppression (like motors and such). …

In principle it could be feasible if you are crazy micropower everything and using techniques like energy harvesting. However there is one tiny little issue: You will inject noise in the audio path Ev …

First of all capacitive sensing doesn't rely on anything about body resistance. It works even with insulation in between. In fact, with glass it works better given it's dielectric properties (there is …

this project is to use a low pass Pi filter like this: simulate this circuit – Schematic created using CircuitLab This is completely passive and it's mostly limited by L1 current handling and the capacitor …