ฝัง
- เผยแพร่เมื่อ 28 ก.ย. 2024
- DIY cheap and simple scalable current sensor. I forgot to mention it's isolated from the circuit where is measuring current. Works on ac and dc. Can be made for under 2 $ but the normal market price are about 25$, you can find them on google typing "current half effect sensor"
jaimesg.com
Great video. I can tell English is not your first language but you explained this so well. The content is 100x more clear than some of my English speaking professors. Great job!
Thank you for the wonderful video. We appreciate your efforts to teach us.
I have questions:
1) How do you determine how to orient the Hall Effect Sensor in the cut? If the ferrite toroid is held vertically, there are two possibilities for the Sensor; face up, or face down.
2) Could alligator clips be added to the ends of the yellow/green wire and, then, connect the device in parallel with the portion of the circuit that you want to read? Maybe this is what you intend... The question comes to mind, because lots of current probes must be clamped to over a wire on the DUT. Alligator clips would allow PCB traces to be read.
3) I would think that the number of wire turns used could be adjusted to create some convenient numeric factor for reading the amperage… 1a applied:1v read, 10a applied:1v read, etc. Correct?
4) I would think that the amperage bandwidth could be increased by using less wire turns and adding an amplifier circuit to read low amperages. A switch could be added to activate the amplifier, or not, to create operational ranges. Correct?
Late in the video, after the device had been handled a bit, it looked as if the alligator clips on the Sensor may have been touching each other.
Others have asked for a construction tutorial video. I vote for that, too. You might want to emphasize that the amperage data output from the Hall Effect Sensor is read in volts, not amps, on the Multimeter.
I look forward to your reply.
Slow & nice, presentation, loved it, Thank You
I've been wondering if that would work! Thanks for posting!
bro sandwiched a transistor in a ferrite core and called it an hall effect sensor
what is inside the ferrite core? how fix the three pins inside the ferrite core?any winding inside the ferrite core replay
Pramo Ku It's a linear hall effect sensor, you can use whatever analog hall effect sensor. The more sensitive the less turns of wire in the ferrite core and more linearity too (far from ferrite magnetic saturation)
tanks
Had to stop watching and post a comment. "What a lovely guy, french too"..: I'll go back and finish watching. :-)
Can you please enable english language subtitles?
Can I make for battery charging cut off base on current flow from charger to battery? Where I find schematic for this?
Do i have to turn the wire around the core or can i just run it straight through?
And will this work for 200 amps from a welder?
+Patryk Darasz With 200A you will be able to go straight through without any turn. Try to choose a relatively sensitive hall effect analog sensor.
Have you built 200A? What size of the core? I want to build one
Appreciate your efforts!
hello friend what is the hall sensor number you used ? because i tried one and it give 5v always when any current passed in its not increasing decreasing according the current increases or decreses
Which type of Hall Sensor are you using? "There are two types of Hall effect sensors: Devices with linear (or analogue) outputs, and those that have digital outputs. Analogue sensors use a continuous voltage output that increases within a strong magnetic field and decreases in a weaker field." (Copied from za.rs-online.com/web/generalDisplay.html?id=ideas-and-advice/hall-effect-sensors-guide#:~:text=There%20are%20two%20types%20of,decreases%20in%20a%20weaker%20field.)
For the algorithm
sir which is the number of the hall effect sensor used
wow, very impressive