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171 Threads found on edaboard.com: Hall Current
hello, is it for DC or AC current ? for DC current, you better have to use hall effect sensor a built-in device as LEM Sensor or build yourself one an exemple on my web page :
You will need to read the voltage using the ADC (internal or external). You also need to sense current (also with the ADC). It can be done simply via a shunt resistor. Or you can use other methods like hall-effect sensor. In the microcontroller code, you need to scale the ADC readings and convert them to display them to LCD. This depends to a large
I have many multimeters whose shunt resistance is too high to be useful at low VOUT, high VIN. My test lashup for current sharing and load-step consists of a pair of hall sensors (Digi-Key; forget the mfr) and a 0.01 ohm precision resistor for calibration of the hall transfer function (volts per amp) in series. The hall (...)
@rongo024 please can you give an insight on this device works and a good current transducer(hall effect)
Hi, How to detect small changes in magnetic field consuming very low current. Any suggestion would be appreciated and helpful. Thanks Have you researched the use of hall Effect sensors that are available? Jim
Personaly i would use an ACS from allegro for this. It gives a outputsignal You can connect straight to the micro and it has no electrical contact between the measured signal and the micro. (Its based on hall sensors) I used this setup from a few Ampere's upto 150 Ampere's, depending on the model used.
Use current transformer or hall effect transducers..
Hmmm... hall effect MOSFETs ?? The depletion region was controlled by electrical charge, not magnetic fields when I was at school. Mind you, that was a long time ago! Brian.
Here is the procedure of measuring the current with shunt resistors. Using Shunt Resistors to Measure current Yes hall Effect is based on Magnetic Flux measurement system.
There is hall-effect current sensor ICs manufactured by leading compines, which gives you good isolation. google for the "hall-effect current sensor ICs "
I found an ic that can sense the current of my battery. I want to take my 12V battery and interface it to a microcontroller via the attached hall effect sensor so that my microcontroller can tell me how much current my battery is providing to the load. The ic has pin 1-2 as
My opinion is that is better to use hall sensor or current trafo then shunt. For higher currents may be very dangerously, and shunt affect on circuit and current.
Transformer action: Inductions is used to measure the currect one some types.. or hall effect is used in some types
Yes you can do it this way, but in order to avoid any additional current dividers, why not to use a 40-50A sensor? See for example: Allegro | Products | ACS756 Fully Integrated, hall Effect-Based Linear current Sensor IC with 3 kVRMS Voltage Isolation and a Low-Resistance Cu
Got anyone have a simple hall effect sensor that can measure the power of the device. I just want the reading and therefore hope can find one simple hall effect sensor that can measure power. Thanks
A couple of additions to what has been said... 1) current transformers are for measuring AC. For DC, you might want to look at hall sensors. 2) The turns ratio of a current transformer (CT) is usually quite high. So, if you have 1000 to 2000 turns and the wire being measured passes through it once, there will be a great increase in (...)
I've managed to find a really nice hall-effect type linear current sensor package from Honeywell Sensing and Control. Its the CS series and has the hall-effect sensor embedded into a ring-concentrator, all in a nice package. Trouble is - I'm having trouble finding anywhere that can get me one. Digikey have one model from the range (...)
For DC currents use "hall Effect" while for AC currents use "Inductive" hall Effect sensor has a core, hall Effect device and signal conditioning circuitry. The current conductor passes through a magnetically permeable core that concentrates the co
All precise isolated current measurement methods require an isolated power supply for the primary side circuit, except for magnetic current transducers with hall sensors. Open magnetic circuit sensors like the Allegro ACS types aren't sensitive enough, but closed core sensors can be equipped with a multi-turn primary windings and achieve the (...)
There are analog hall sensors but they tend to be slow. The problem I believe is that the hall effect is very weak, so the sensors have op amps and such wrapped around them which of course slows things down plenty. A current transformer (like Tek CT-1 / CT-2) has much better transient performance, but no DC measurement capability at (...)