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 …

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 …

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 …

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 …

Jul 2, 2023 · UART isolation with opto-coupler Ask Question Asked 2 years, 6 months ago Modified 7 months ago

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 …

Apr 13, 2025 · As I understand the optocoupler current transfer ratio, CTR is like the hfe of a transistor. I can't understand if the CTR is or isn't a critical value and for what applications is it used in. CTR＝...

Can you show a schematic of the connections between the coupler and the ESP32? It is very unusual, that you need 26 mA to control 0.1 mA on the coupler output side. This would be the case if collector …

I want to understand how the CTR of an opto-coupler is linked with its other parameters, for example its switching speed or time delay between input and output or any other parameter. I am using ...

Nov 10, 2014 · A opto-coupler or opto-isolator (different words for the same thing) is only one method. Opto-isolators can be broken into a few broad catagories. The most common is a LED shining on a …