The utilizing Hall effect-based current sensor ACS712 for true RMS current measurement in power electronic systems

Abstract

Current measurement in power electronic systems is a necessary part of the measurement process. There are different ways for current measurement like using current transformers or using the Rogowski coils which are not precise enough in many applications and not suitable for use in power electronic measurement systems. For that reason, the Hall effect-based sensor can be used as a very precise alternative with minimum external components. Presented in this paper is utilizing the Hall effect current sensor ACS712 for current measurement with a microcontroller system. The measurement with the Hall effect sensor is described with an appropriate comparison of the measurement values on a microcontroller system and multimeter and high precision power analyzer Chauvin Arnoux 8335.

Design of Brushless DC Motor Driver Based on Bootstrap Circuit

“…Space for two current sensors based on ACS712 20 A is provided in the PCB. The ACS712 works with a 5 V supply and results in the analog voltage directly proportional to BLDC current [22] to measure rms current [23]. The voltage divider circuit using two series resistors in series is used to get 0 -3.3 V range output of the current sensor from 0 -5 V range.…”

The analysis of operation of CAN communication using different types of sensors

“…The microcontroller system representing node 1, in this case, measures the temperature and air humidity using the DHT11 [11] sensor, while the data from the sensor is received via the ATMega328P [12] microcontroller on the Arduino Nano development board and further processing and sending of data is finished via the MCP2515 CAN controller [13] and the TJA1050 transceiver [ 14].…”

“…Modern cars have more than 70 control units for different subsystems. Typically, the test node is the motor control unit while the other nodes are transmission, airbags, servo, fuel flow control, ABS, and others [2]. This bus protocol is used for communication and exchanging information between ECU, which present one of the core components in the electronic system in vehicles.…”

Simulasi Monitoring Arus, Tegangan dan Daya Panel Surya

“…Sensor arus listrik berguna untuk mengukur arus listrik karena dapat memantau berapa banyak listrik yang digunakan dan dapat memberikan nilai analog, sehingga penggunaan listrik dapat diatur dan dikontrol. ACS712 salah satu sensor arus yang dapat digunakan dalam proses mendeteksi arus listrik dengan prinsip efek hall [14][15][16][17].…”