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  1. Capacitive touch trigger as an isolated system - All About Circuits

    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 …

  2. Capacitive touch buttons not seeing touch - All About Circuits

    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 …

  3. Capacitive discharge welder - All About Circuits

    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 …

  4. What is the capacitive load? - All About Circuits

    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 …

  5. What constitutes a "capacitive" load? | All About Circuits

    Nov 3, 2020 · In a reactive load, the inductive reactance and the capacitive reactance have the opposite sign. So if the inductive reactance is 10 Ω, and the capacitive reactance is 12 Ω. then …

  6. Capacitive Speakers - All About Circuits

    Jul 20, 2022 · The capacitive value of the speaker is an important characteristic for the amplifier circuit of the speaker. “Piezoelectric means capacitive load” Most amplifier IC’s are developed …

  7. Why is a capacitive load necessary for PSU testing?

    Jul 19, 2023 · Because a capacitive load affects the frequency response of the control loop, and is likely to cause instability in a power supply which has inadequate phase margin.

  8. Inductive, Capacitive, and Resistive Circuits - All About Circuits

    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.

  9. How to operate a capacitive touch switch using relay contacts.

    Oct 12, 2023 · FTC334F is a professional capacitive touch button processing chip. It adopts the latest high-precision digital capacitance measurement technology and can prevent various …

  10. How to calculate current limitation in an AC capacitive drop circuit

    Apr 25, 2022 · The problem with getting higher current out of a simple capacitive dropper is the inherent conflict between two operating conditions: 1) Inrush current, discharged capacitor, …