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171 Threads found on edaboard.com: Hall Current
Hello, Cold a hall sensor be used to reliably sense the FET current waveform in a flyback converter? Would it distort the waveform too much?. The attached shows the waveform of the FET current as a voltage across a sense resistor, but how would a hall sensor compete with this?
Torque is proportional to current HP is proportional to V*I Due to variation of torque between phases, more phases gives smoother torque. You can search for waveforms depending on size and drivers using magnetic hall sensors for commutation
C dividers are safer at high voltage and lossless. then decide if delta or Y I sensors may be expensive CT or cheap but custom hall sensors then scale to your ADC range , add filters and decide if you want Vavg or V pk or true rms and convert accordingly Decide on range, accuracy, and metrics 1st eg. mean, std dev, peak , transient pk, V-sec o
For current you can use current transformer and to detect the value of current, with help of OP-AMP or hall sensor connected to ADC For Voltage you can use potential transformer (which reduces your actual voltage in 1:N ratio, this can used for measuring large voltage values) and for detecting the exact voltage, with (...)
Hi everyone! i am working with CSLA2DG hall effect current sensor with PIC16F676 and 7 segment display as: sensor supply volts are DC 8v out put is DC 4.03 volts at 0 Amps and for every Ampere the voltage increment at 1 mv. At PIC i used vADC * 500/1023 and (vADC / 10)% 10 is my first digit (I m trying to drop the 4v and want to
Hi everyone, I am trying to measure AC mains current. I have tried making current transformer for ac current measurement but it didn't worked! So I have turned to use this WSH315 hall effect sensor. So can we use it? if yes how? Any help would be appreciated. link for sensor
I want to measure the total current consumption in my car, I want to add additional electrical items and worried I will have a flat battery. I also want to log the current, so thinking ardunio would be ideal to show the data with rtc to provide time stamp. The question is how to measure the current, I have been looking at shunts and (...)
I want to measure current in a 15 watt bulb when connected to 230 volts AC. Can anybody help me with the AVR code,calculations that I need to make in my code to measure AC current?
I am using an acs712-30a hall effect sensor module for measuring ac current interfaced to adc of atmega16. I have taken load as a 15 watt bulb and my supply is 230v AC. Now, the problem I'm facing is that, I am not getting the proper value of curent. What all formulaes shall I use to get the required value of current?
DC clamp meterss (using hall sensor) are available on the market. They can be intentified by a DC current line in the specification. The present instrument doesn't have it and unfortunately can't be modified to support DC measurements. - - - Updated - - - E.g. this one
Is there any hall effect sensor available to measure AC current in a three phase system? I want to interface the hall effect sensor output to the ADC of my microcontroller.
No, voltage measurement alone isn't enough to derive current if you don't know impedance. Can't you use a hall effect sensor to measure current directly?
Hello, I have an hall sensor that gives me an output from 0 to 2,5V. This sensor is connected to an USB board and is read like an analog axis, and there is another sensor that is exactly the same connected in parallel to the first one. Basically, I can modify the same axis from two different places. This works great for my use, but I need to adj
Anyone, I recently bought a hall effect current sensor (I'm fairly new to this application) as I'm required to build a smart meter. I'm trying to understand how it works using this simple setup: a variable resistor (rated 5A, 240V) connected to the mains. I've got a cord wound around the sensor (as required - arbitrarily, I've got 4 turns). Whe
I am using a hall effect transdcuer to measure AC current form a 230v supply. The current is between 0 and 1A. I want to convert the output voltage from the transdcuer to a dc votage and feed it into a summing amp. I can't find a method to do this
I am using ACS712 hall effect current sensor. It gives 66mV/A. I am using ADC0808 to read the value of AC current passing through real load. Now the problem is that ADC0808 reads the analog values but i need the peak value of current. How can I read this signal with
Without doing any research, I am assuming that the Arduino is talking to Labview vis the USB port as a serial device? If that is the case you need to have a few layers of hardware and software to do this. 1.) Reading the current and voltage --You can read AC current with either a shunt resistor or a hall effect sensor. I am thinking the (...)
allready tested ACS712-5 , range only 5 Amp! and internal shunt is * 1.2 milliOhm for this device if you want extend the range of yours from 30Am to 50Amp AC712 is a magnetical (hall effect) sensor and not specified for the primary conductor resistance. It's a copper bar and the initial resistance variation and temperature drift
Evening gents, We've built the following circuit in the lab for our DC-DC converter for an electric motorcycle. The blocks from left to right are, High speed optoisolator IR2110 Gate driver IC MOSFET Power buffer circuit MOSFET Power Module PMDC Motor ~48V Lead acid battery bank
hall effect sensors.