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171 Threads found on Hall Current
With 100A, there will be some serious magnetic field in the area of the conductor. Try a hall effect sensor.
App notes on current sensing. Here's a another interesting one about magnetoresistive sensors: . E.g. ZMC05 and ZMC20 current sensors. Allegro hall-effect sensors, which were already mentioned above: www.
Hi all, I made a device to measure current in used by a 220V device. It uses a Relay to switch on the device and a hall effect sensor in the same circuit measures the current. It works fine. I added a Triac in parallel with the relay to implement zero cross on / off switching, so I turn the triac on for 200 msec before the relay and (...)
Instead of using a small shunt resistor, you could also consider using a hall-effect sensor. This sensor would have no drop in output voltage, but will be a bit more expensive to implement in the design.
Available options are 1. shunt 2. open magnetic circuit hall sensor (e.g. Allegro ACS754) 3. closed magnetic circuit hall sensor (e.g. LEM HTFS) 4. compensating DC current sensor(LEM, Honeywell, diverse). I don't understand, how the question is related to modelling?
this is a hall effect current sensor. product datasheet found here you supply it with +/- 15V, and you read on the sense wire a proportional current. that current should be directed towards a resistors ("burden" resistor) of ohmage value given in datasheet. the voltage developed across t
you can only measure motor speed with resolver encoder some sort of hall effect device
the best solution is: use one of hall effect current sensor "LEM" to measure DC current in isolated. place a low pass filter (RC) and compare it,then you can disable TCA785 in Inhabit pin or using a Integrator + comparator + Reset Relay to down Control Voltage of TCA785. i Used this solution in DC motor Control.
Hi Recently I have measured the current pulses from the dc brushless fan runnint at 24V. Is the regular current pulse indicates one complete revolution? If not, that I have to resort the hall effect sensor to mesure RPM Is that correct??
magnetic core with an hall sensor ? Is it enogh fast ? Mandi
Here are some options for the RPM sensors: - hall effect. This is especially useful, when you have steel gears. hall effect sensors are commonly used in cars for RPM sensing. - Inductive (aka eddy current) - Optical - Capacitive The choice would depend on mechanical aspects of your design. Is there a gear box? What are the gears (...)
look at this app note: broader app note on current sensing. It covers both resistive and hall-effect sensors:
Is there maybe a better way, like hall effect current sensors? Resistive current sensor is a good approach for 1A. Here's an app note on current sensing, which compares resistive and hall-effect sensors: I didn't mention explicitely, but a low-ohmic shunt mea
If cost permits you can use mirror / hall element etc
Hi, how can i use hall sensor from speedometer to make my own circuit. I would like to make my own speedometer cause i've lost "computer" part. hall sensor have two wires. I've saw somewhere that 2 wire hall sensors are current based. Anyone have some circuit schematic that can be used to connect it to uC ? Thanx
you can try use hall effect current transducer...from LEM, i just use it to complete my power factor correction unit project..all the best!!!
have any circuit or ic that can measure the phase difference between current and voltage to get power factor??i have design a AC power factor correction circuit using hall effect current transducer, now i need a phase detector circuit to measure power factor then select require capasitor to correct the pf to more perfect value... i have (...)
You need to understand about VSS - Vehicle Speed Sensors (sometimes called hall Effect Sensors). Basically they connect to the gear box and will give out a train of pulses when the wheels turn. You need to know the number of pulses for a given distance (say pulses/mile) and then calculate the speed. There is more to it but that's the basics.... Goo
no it is not a hall effect sensor . UNG3503 , it need ferrite core , any way here is the
look at this app note: broader app note on current sensing. It covers both resistive and hall-effect sensors: Hope this fits your context. Hope this helps.