โมดูลวัดกระแสแบบ Hall effect MCU-758 ACS758LCB-050B-PFF-T linear current sensor Hall current module

โมดูลวัดกระแส ให้สัญญาณ analog แบบ linear สำหรับ arduino ทำให้สามารถ calibrate ได้ง่าย สามารถวัดกระแสสูงสุดได้ถึง 50A DC/AC

ตัวอย่าง Code 

#define senseIn = A0
int miliVoltsPerAmp = 40; //See the diagram for scale factors
int acOffset = 2500;  //See the diagram for offset value
int rawSense = 0;
double voltageValue = 0;
double amp = 0;

void setup(){
   while(!Serial){
 Serial.begin(9600); //If serial is available 
}
 Serial.println("14CORE | ACS758 Test Code");
 Serial.println("Initializing ............");
 delay(2000);
}

void loop(){
   rawSense = analogRead(senseIn);
   voltageValue = (rawSense / 1023.0) * 5000;
   amp = ((voltageValue - acOffset)/miliVoltsPerAmp);
   Serial.println("RAW VALUE > ");
   Serial.println("rawSense");
   Serial.println("MiliVolts > "); //Print measured voltageValue
   Serial.println("voltageValue, 3"); //Set display 3 digits after decimal point
   Serial.println("AMPS > ");
   Serial.println(amp, 3);
   delay(2500);
}

Features:

 

- Industry-leading noise performance through proprietary amplifier and filter design techniques

- Integrated shield greatly reduces capacitive coupling from current conductor to die due to high dV/dt signals, and prevents offset drift in high-side,

   high voltage applications

- Total output error improvement through gain and offset trim over temperature

- Small package size, with easy mounting capability

- Monolithic Hall IC for high reliability

- Ultra-low power loss: 100 μΩ internal conductor resistance

- Galvanic isolation allows use in economical, high-side current sensing in high voltage systems

- 3.0 to 5.5 V, single supply operation

- 50A working current, -40℃ ~ +150 ℃ working temperature

- 120 kHz typical bandwidth

- 3 μs output rise time in response to step input current

- Output voltage proportional to AC or DC currents

- Factory-trimmed for accuracy

- Extremely stable output offset voltage

- Nearly zero magnetic hysteresis