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- coupling - What does an RF coupler actually do? - Electrical . . .
To start with, I've had difficulty finding a good, simple explanation of what directional coupling is I read through Radio Electronics, but the section on directional couplers doesn't give an overview of what it means to "couple " Could someone offer a simple explanation of what "coupling" is and what a directional coupler actually does?
- How does this HF coupler work? - Electrical Engineering Stack Exchange
I came across this coupler design in this link in another question It's designed to be used to couple a small monitoring amount of signal off a 1 kW HF (3 MHz to 30 MHz) signal on a through line
- How reliable is using couplers to extend Ethernet cables?
I want to obtain one 90 meters of Ethernet CAT6 cable (with RJ45 connectors) by using three 30 meters of CAT6 cables with RJ45 connectors The only option I could find is to use three such couplers
- Difference between RF splitter and coupler? - Electrical Engineering . . .
Somebody suggested using a splitter for this work, but when I tested one I found that all three nodes could communicate with each other Now, somebody is telling me to use a coupler Can a coupler achieve what I want? What is the difference between splitter and coupler? PS: I am working in the 2 4GHz band (wifi), if that makes a difference
- opto isolator - Electrical Engineering Stack Exchange
As long as the opto-coupler doesn't introduce a huge phase shift, causing feedback to get precariously close to becoming positive, or isn't asked to produce output current or voltage beyond its ability, then this closed-loop system as a whole finds and maintains the state
- high voltage - What types of bus couplers exist? - Electrical . . .
There are various types of bus couplers (for double bus system, single section bus system, etc ) I know that bus coupler between two busbars is called cross bus coupler How are other bus couplers
- ltspice - Building SPICE models of optocouplers - Electrical . . .
Oh Ok That wasn’t clear to me So you’re basically asking how to create SPICE models for optocouplers It depends how accurate you want it to be to real life Datasheets only give you a subset of information required, so you can only derive a rough model from them, which might be or not be good enough for your application periblepsis‘s answer gives a great starting point on how to
- Powering a 5V Relay from ESP32 using a PC187 optocoupler: how to wire?
The picture of the coupler shows 10 kohm and a LED in series with the coupler diode This is a design for 24 V input signals, change R1 to 100 ohm The output circuit is inverted using a resistor to VCC This configuration cannot drive the relay Connect OUT to 5V and GND to the relay, leave VCC open
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