홀 전류 AC/DC 센서 -ACS37010, ±50A
(HALL CURRENT 17 CLICK)
개요
- 본 제품은 홀 전류 AC/DC 센서 -ACS37010, ±50A입니다.
- 정교한 전류 센서 ACS37010 를 장착하고 있는 제품으로 SPI 인터페이스를 가지고 있습니다.
- ±50A 의 전류를 측정할 수 있습니다.
- 알림: 부하가 연결되었을때 보드를 만지지 마십시요. 위험할 수 있습니다.
특징
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DO NOT TOUCH THE BOARD WHILE THE LOAD IS CONNECTED!
Note: This Click board™ needs to be used by trained personnel only while applying high voltages. Special care should be taken when working with hazardous voltage levels.
HOW DOES IT WORK?
Hall Current 17 Click is based on the ACS37010, a high-accuracy current sensor from Allegro MicroSystems. It is a fully integrated Hall-effect current sensor, factory-trimmed to provide high accuracy over the entire operating range without user programming. The internal construction provides high isolation and excellent magnetic coupling of the field generated by the current flowing in the conductor and the fully monolithic Hall sensor IC. Two Hall plates that subtract interfering common-mode magnetic fields sense the current differentially. The Hall sensor has no physical connection to the integrated current conductor, as the ACS37002 provides high isolation between the primary and secondary signal leads by magnetically coupling the field generated by the current in the conductor.
The current sensor features overvoltage detection, undervoltage detection, temperature compensation, and more. The ACS37010 is rated to withstand 3500VRMS of dielectric voltage. The IP+ and IP- terminals allow connecting the load over the load connectors. The ACS37010 has a current sensing range of ±50A and a fixed sensitivity of 40mV/A. It uses differential sensing, which is robust against external magnetic fields.
The Hall Current 17 Click uses the nonratiometric operation of ACS37010 with VREF output for enhanced accuracy in a noisy environment. The signal from Hall plates passes the integrated front and back amplifiers, and after it passes to the VOUT buffer, the output is sent along with the zero current voltage reference to the ADC122S101, a two-channel 12-bit A/D converter from Texas Instruments. This ADC is fully specified over a sample rate range of 500ksps to 1Msps. It is based on a successive/approximation register architecture with an internal track-an-hold circuit. Hall Current 17 Click uses a standard 4-Wire SPI serial interface of the ADC122S101 to communicate with the host MCU.
This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used as a reference for further development.
SPECIFICATIONS
Type Current sensor,Measurements Applications Can be used for the development of applications requiring a combination of high-current monitoring and high isolation voltage between the primary high-current and low-voltage sides On-board modules ACS37010 - high-accuracy current sensor from Allegro MicroSystems Key Features High operating bandwidth and fast response time, high-accuracy current measurements, low internal primary conductor resistance, highly isolated compact surface-mount package, wide sensing range, and more Interface SPI ClickID Yes Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V