ACS712
Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 2.1 kVRMS Isolation and a Low-Resistance Current Conductor
Functional Block Diagram
VCC (Pin 8)
+5 V
Hall Current Drive
IP+ (Pin
specified. C P F is recommended for noise management, with values that depend on the application. ACS712-DS, Rev. 15 Fully Integrated, Hall Effect-Based Linear Current Sensor IC ACS712 with 2.1 kVRMS Isolation and a Low-Resistance Current Conductor Description (continued) TheACS712isprovidedinasmall
specified. C P F is recommended for noise management, with values that depend on the application. ACS712-DS, Rev. 15 Fully Integrated, Hall Effect-Based Linear Current Sensor IC ACS712 with 2.1 kVRMS Isolation and a Low-Resistance Current Conductor Description (continued) TheACS712isprovidedinasmall
Selection Guide T Optimized Range, I Sensitivity, Sens Part Number Packing* (°C) (A) P (Typ) (mV/A) ACS712ELCTR-05B-T Tape and reel, 3000 pieces/reel –40 to 85 ±5 185 ACS712ELCTR-20A-T Tape and reel, 3000 pieces/reel –40 to 85 ±20 100 ACS712ELCTR-30A-T Tape and reel, 3000 pieces/reel –40 to 85 ±30 66
IDUINO for maker’s life User Manual For ACS712 20A Range Current Sensor Module for Arduino(ME067) www.openplatform.cc IDUINO for maker’s life Description: The Allegro® ACS712 provides economical and precise solutions for AC or DC current sensing
FALL 1: 230 V AC / 2 A
Messung von Wechselstrom (230 V AC) bis max. 2 A
Empfehlung: ACS712-5A
L (Phase)
230 V AC
N (Neutralleiter)
ACS712-5A
ESP32 (DevKit)
Signalpegel
Bei 0 A: VOUT = 2,5 V
Bei +2 A: VOUT = 2,8 V
Bei -2 A: VOUT = 2,13 V
Empfindlichkeit: ca. 185 mV/A
Verbraucher z.B. Lampe
signals") legend("iField","vField","vRotor","vAmp"); grid on hold off # calculate physical values # ACS712x05B sensor voltage to current relation acs712_mV_per_A=185; c=acs712_mV_per_A/1000; # current calculated from sensor voltage # negative current to correct hysteresis plot iField_A=-iField/c; Rshunt
signals") legend("iField","vField","vRotor","vAmp"); grid on hold off # calculate physical values # ACS712x05B sensor voltage to current relation acs712_mV_per_A=185; c=acs712_mV_per_A/1000; # current calculated from sensor voltage # negative current to correct hysteresis plot iField_A=-iField/c; Rshunt
= 0 END IF RETURN '=============================================================================== ACS712_NULLABGLEICH: 'STROM WIRD BEI AUSGESCHALTETEN KANÄLEN GEMESSEN UND DADRUCH NULLPUNKT FESTGELEGT '100x OVERSAMPLING ADMUX.2=1:ADMUX.1=1:ADMUX.0=1'ADC7 OVERSAMPLE_AKKUMULATOR = 0 WAITMS 100 FOR C_BYTE
FALL 1: 230 V AC / 2 A ACS712-5A Hall-Effekt-Stromsensor ESP32 DevKit Verbraucher 2,38 Lampen 5 V bis max. 2 A FALL 2: 12 V DC / 40 A Shunt 1 mOhm Kelvin-Anschluss INA226 Verbraucher 40 A Stromfluss GND 12 V DC INA226 Berechnung
FALL 1: 230 V AC / 2 A
Messung von Wechselstrom (230 V AC) max. 2 A
Empfehlung: ACS712-5A
1 (Phase)
230 V AC
ACS712-5A
Strom
Spannung zwischen 230 V und ESP32
ESP32 (DevKit)
Verbraucher
230 V AC
FALL 2: 12 V DC / 40 A
Messung von Gleichstrom (12 V DC) max. 40 A
Empfehlung: Shunt +
control. You could also use it to control devices like digital potentiometers. TOP POSTS & PAGES The ACS712 Current Sensor Rotary Encoder Basics with an Arduino A rotary encoder has a fixed number of positions per revolution. These positions are easily felt as small ACS712 Current Sensor User “clicks”
der IO-Platine, jetzt mit Netzteil Hier teilbestückt als Akkutester mit WLAN-Anbindung, Stromsensor ACS712 abgesetzt wegen der magn. Beinflussung durch Relais Version 2 der IO-Platine, jetzt mit Netzteil Netzwerkkoppler mit Netzteil, serieller Bus an Pfostenstecker Netzwerkkoppler mit Netzteil, serieller
OC (1-Draht-HausBus) ▪ 1-Wire (Pullup notwendig) o Signale pro Kanal • Analog: Strommessung (über ACS712 und zusätzlichen ADC ADS1115 als Modul) • Analog: Spannungsmessung • Digital: Schaltsignal • Digital: Rückkanal, als OC oder seriell • Arduino-Belegung je Kanal, mit zusätzlichem I2C-A/D-Wandler
550mV +36V / 4.3A D2 A A R27 TR4 R26 L1 TIP32C / 3A / 100V / 40W 33 / 1W 120uH / 2A 100 / 1W GND U8 ACS712ELCTR-20A-T C20 C19 1 2 3-4 220uF / 50V 220uF / 50V / P I-/ GND R28 P I I 2.20K / 1W I C1 R20 10nF / 50V 33K / 0.1W T R GND C U TD U9.1 C I IN LM324MTX +5V V V F G 4 8 7 6 5 7 1 1 5 6 1 9 1 8 6 B
L_POLARITY IN_2 EN ADC_SPI_EN I O G G P B N 7 IN_3 SCLK 13 ADC_SPI_SCLK _ R V U + C I BAT43 R T _ E IC8 ACS712 D15 V S + R 1 8 C+_1 VCC 3 L 0 Cn 2 C+_2 OUT 7 1 k 2n 1 S 3 6 1 C 1 N C-_1 F F1 F R T E +28V_PRI 4 5 1 C 8 0 IC1ATMEGA644(TQFP44) S S C-_2 GND GND_PRI C 1 4 30 O I 6 5 RESET (ADC7/PCINT7)PA7 31 O
1min. with a “millis()”-counter (-Interrupt) would be in the right bandwidth. Pingback: Using the ACS712 Current Sensor – Arduino++ Mingjian Lu June 24, 2016 at 11:18 pm Saved my life, ty Reply ↓ natong August 24, 2016 at 9:51 am Voltage = (ADCValue / 1023.0) * Vcc; 1023 or 1024 ? Reply ↓ majenko
pin sits around 2.67V and it increases with 0.066V for every 1A drained from the supply. See the 3 ACS712ELCTR-30A-T datasheet for more information. Voltage directly proportional to the heatsink temperature. This output increases with 0.01V for every 1 Celsius degree. Vtemp (output) Expect 0.20 to 0.30V
SPT7820 9 3/11/97 PACKAGE OUTLINES 28-Lead SOIC INCHES MILLIMETERS SYMBOL MIN MAX MIN MAX A 0.696 0.712 17.68 18.08 B 0.004 0.012 0.10 0.30 C .050 typ 0.00 1.27 28 D 0.014 0.019 0.36 0.48 E 0.009 0.012 0.23 0.30 F 0.080 0.100 2.03 2.54 I H G 0.016 0.050 0.41 1.27 H 0.394 0.419 10.01 10.64 I 0.291 0.299
........ceecccceccccscceseee S L L 3.3.5 Temperature meaSurement ..... cece cere ccc eeserecenae S712 3.3.6 Multiplexer ee eee ee eee ee ee ee eee ee eee eee eee eee aera3-12 3.3.7 Control of analog SeECtiON 1... cece ee een cease esevees S712 3.3.8 Guard circuit e e ee ee ee 3-12 3:39 Analog to Digital
file because the file — was saved on equipment with a different version or a different configuration. 712 No data on X-axis Cannot execute because the input of the channel 6-6, set to the X-axis is turned OFF. 7-6 Change to another channel. 713 Remote You can release the remote operation, carrying (Push
controlled the rotational speed during the tests through a four–quadrant frequency in- verter (ABB ACS501–01). The torque and, consequently, the power produced by the turbine was measured bya torque meter (Messtechnik DRBK, nominaltorque 50 Nm, 0.5% FS) connected between the turbine and the motor through
European symbol 1 R7 12k R-EU_0204/7 0204/7 RESISTOR, European symbol 1 R7 1,2K RESEU-10@2 R-10@2 1 R712 220R R-US_R0603 R0603 RESISTOR, American symbol 1 R7 120 R-EU_R0805 R0805 RESISTOR, European symbol 1 R7 120 R-EU_M0805 M0805 RESISTOR, European symbol 1 R71 1,8k R-EU_0207/10 0207/10 RESISTOR, European
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