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- Capacitive touch trigger as an isolated system - All About Circuits
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 and the gadget will trigger a capacitive touch on the tablet without requiring anyone to be holding the gadget or the
- Capacitive discharge welder - All About Circuits
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 between 10 - 200 ms Capacitor bank consists of four 100 F , 2 7 V ultra capacitors connected in series They are
- Capacitive touch buttons not seeing touch - All About Circuits
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 displays check the increase of capacitance between the finger and the display on touch, but normally it is recommended to use a pen or a resistive display Try to search for a way to calibrate the display (how much
- What is the capacitive load? - All About Circuits
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 battery, but I am not sure whether I am doing this correctly
- Best Way to Activate a Touch Switch Without Touching It
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 something completely isolated from the touch switch circuit I know I can use a piece of metal and a linear actuator
- Morse Keyer Project - All About Circuits
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 not sure whether you're an ARRL member, but the schematic is available from that website if you search within the QST keyword selection
- Adjusting the electrical length of antennas - All About Circuits
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 transmitting frequency, it offers an inductive reactance
- Capacitor Selection for Capacitive Coupling of RF Signal
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 the impedance of the secondary receiver to be 50 ohms The IF output is centered on 40 455Mhz Can anyone
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