Jun 2, 2019 · I need a way to trigger a capacitive touch screen device (like a tablet) using an isolated system without touching it. For example a kid places a small gadget on a tablet screen …

Aug 2, 2016 · Hello All, I am trying to build a simple capacitive builder. Part of the circuit is shown as below The gate drive gets signal from a microcontroller. The pulse time can be varied …

Oct 13, 2018 · This can be do to a lot of factors: your fingers are dirty/wet/in scars. The capacitance of the object to touch with (fingers) is not high enough. As far as I guess, these …

Mar 4, 2024 · What is the capacitive load and how can capacitive load be simulated? I want to monitor the current and voltages in the simulation by powering a capacitive load from the …

Apr 17, 2024 · Hello there, I'd like to activate a touch switch electronically. It's a capacitive type switch. There can be no wires connected to the capacitive switch, it must come from …

Jun 18, 2025 · This capacitive reactance can be compensated for by introducing a lumped-inductive reactance, as shown in view A. Similarly, if the antenna is too long for the …

Mar 2, 2015 · Hello, I want to couple the IF signal of an existing receiver to a secondary software defined receiver. I am trying to identify the correct capacitor to use for this coupling. I believe …

Sep 16, 2019 · Resonance when inductive reactance = capacitive reactance. leaving resistance the only form of impedance. See effect of series and parallel tuned circuit. Max.

Dec 2, 2022 · I understand why capacitive reactance reduces inductive reactance mathematically, having a result of zero at resonant frequency. But how to physically explain the flow of …

Jul 7, 2010 · As for the capacitive touch circuit, I remember reading a QST article of a guy who designed a Morse Code Keyer with capacitive initiation (it had everything you described). I'm …