How a Current resistor/sensor/detector works- Lesson 30 Learning electronics with Diana

[@shawnronawa7674]

Thanks for simplifying it

[@laidman2007]

I'm very much a beginner. This was so useful!

[@retrocomputinggrotto]

I had to watch this one a couple of times before it sunk in! If I'm understanding correctly, a current sensing resistor is used so that if the current reaches (and goes past) a certain value the potential difference across the current sensing resistor is enough to drive another part of the circuit in to doing something such as shutting down all/some/one of the power supplies so no damage can be done by too much current flowing due to a fault somewhere?

[@renefuller9241]

So that voltage drop across the current detecting resistor is used by the pq (or whatever it's called) chip to detect a shorted mosfet or shorted power rail. The chip replaces the LED in this example, correct?

[@louaymobaied2]

I am learning with you new things too

[@gasparmarius]

Toate clipurile sunt faine da nu inteleg de ce reprezentati ledurile pe dos,adica cu catodul la plus si anodul la minus.E clar că sunt montate corect în montaj,da pe schema sunt pe dos.

[@MartinRepairs]

Diana: why/how the current resistor can take 5Watts of power (12V 0.4A). And why dont i see in every application such huge resistors as you are using.
Sorins face: 🙄

[@Philippe-Philou]

hello , 👍

[@laidman2007]

Aren't you two charming!

[@lucataszarek8782]

Hello🤝👍👍👍👍👏👏👏👋👋👋👋👋

[@ictsaverhome1950]

Hi your students not good in class😅