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  1. coupling - What does an RF coupler actually do? - Electrical ...

    Apr 17, 2018 · 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 …

  2. Récepteur usb logitech perdu [Résolu] - Souris / Touchpad

    Bonjour, j'ai une préoccupation; en fait j'ai perdu le RÉCEPTEUR de ma souris sans fil Logitech et je voulais s'il est possible d'adapter ma souris à un autre RÉCEPTEUR sans fil pr tjr l'utiliser. je tiens a …

  3. high voltage - What types of bus couplers exist? - Electrical ...

    Jan 31, 2017 · 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 …

  4. Newest 'coupler' Questions - Electrical Engineering Stack Exchange

    Jul 30, 2025 · Bidirectional Coupler from Directional Couplers new to RF engineering. I want to build a wideband bi-directional coupler because commercial ones are quite expensive. I decided to build one …

  5. Which transistors combination is best for a non-inverting 3.3V - 24V ...

    Sep 21, 2025 · output : 24V , 24 mA (high low)to drive an SFH617A-3X007T opto-coupler, which has a series resistor to limit the current to the opto-coupler diode on the other side. Which transistor …

  6. opto isolator - Electrical Engineering Stack Exchange

    Feb 9, 2025 · 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 …

  7. coax - Directional coupler frequency range - Electrical Engineering ...

    Aug 26, 2023 · If a directional coupler is labeled 5-1002 Mhz, what happens to frequencies above that? Is that just the rated frequencies but above that may work fine, or does that mean it blocks everything …

  8. ltspice - Building SPICE models of optocouplers - Electrical ...

    Mar 26, 2024 · 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 …

  9. How reliable is using couplers to extend Ethernet cables?

    Jul 18, 2018 · 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 …

  10. Detecting and measuring AC line voltage with an optocoupler

    Jun 13, 2024 · I simulated the circuit shown below using MultiSim and obtained some interesting results. The simulation suggests that you can accurately reproduce the AC line voltage from the input to the …