Mikroelektronika d.o.o.
Hall Current 15 Click-Board
Hall Current 15 Click-Board
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Das Hall Current 15 Click Board™ ist eine kompakte Zusatzplatine, die eine präzise AC- oder DC-Stromerfassungslösung bietet. Diese Platine verfügt über den TMCS1101-Q1, einen galvanisch isolierten Hall-Effekt-Stromsensor von Texas Instruments, der DC- oder AC-Strommessungen mit hoher Genauigkeit, ausgezeichneter Linearität und Temperaturstabilität ermöglicht. Eine Signalkette mit geringer Drift und Temperaturkompensation bietet einen Vollausschlagsfehler von <1,5 % über einen breiten Betriebstemperaturbereich. Es bietet außerdem eine zuverlässige Betriebsspannung von 600 V über die gesamte Lebensdauer und eine Isolierung von 3 kVRMS zwischen Strompfad und Schaltkreis mit uni-/bidirektionaler Stromerfassung. Außerdem kann der Benutzer das Ausgangssignal in analoger oder digitaler Form verarbeiten. Dieses Click Board™ eignet sich für die AC- oder DC-Stromerfassung in industriellen und kommerziellen Systemen, Motor- und Laststeuerung, Leistungsfaktorkorrektur, Überstromschutz und mehr.
Das Hall Current 15 Click Board™ wird von einer mikroSDK-kompatiblen Bibliothek unterstützt, die Funktionen enthält, die die Softwareentwicklung vereinfachen. Dieses Click Board™ wird als vollständig getestetes Produkt geliefert und ist bereit für den Einsatz auf einem System, das mit der mikroBUS™-Buchse ausgestattet ist.
How Does The Hall Current 15 Click Board™ Work?
The Hall Current 15 Click Board™ as its foundation uses the TMCS1101-Q1, a precise Hall-effect current sensor featuring a 600V isolation working voltage, <1.5% full-scale error across temperature, and device options providing both unidirectional and bidirectional current sensing from Texas Instruments. The input current flows through an internal 1.8mΩ conductor that generates a magnetic field measured by an integrated Hall-effect sensor and amplified by a precision signal chain. The device has a bandwidth of 80kHz and can be used for AC and DC current measurements. It is optimized for high accuracy and temperature stability, with offset and sensitivity compensated across the operating temperature range.
The Hall Current 15 Click Board™ possesses two ways to communicate with the MCU. The analogue output signal of the TMCS1101-Q1 can be converted to a digital value using ADC101C021, a 10-bit resolution analogue-to-digital converter from Texas Instruments using a 2-wire I2C compatible interface, or can be sent directly to an analogue pin of the mikroBUS™ socket labelled as AN. Selection can be performed by onboard SMD switch labelled as OUT SEL, setting it to an appropriate position marked as AN or ADC. The ADC101C021 can transfer data supporting modes up to High-Speed, alongside its alert function, which provides an interrupt routed to the ALR pin of the mikroBUS™ socket activated when analogue input violates a programmable upper or lower limit value.
Also, this Click board™ should be connected in series with the load. The current is measured by two onboard terminal connectors, one terminal block for the positive and the other for the negative current input.
The Hall Current 15 Click Board™ can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the communication lines properly. However, the 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 |
| Applications | Can be used for AC or DC current-sensing in industrial and commercial systems, motor and load control, power factor correction, overcurrent protection, and many more |
| On-board modules | TMCS1101-Q1 - galvanically isolated Hall-effect current sensor capable of DC or AC current measurement from Texas Instruments |
| Key Features | High accuracy and precision, excellent linearity, and temperature stability, 3kVRMS isolation rating, robust 600V lifetime working voltage, bidirectional and unidirectional current sensing, and more |
| Interface | Analog, I2C |
| Compatibility | mikroBUS |
| Click board size | L (57.15 x 25.4 mm) |
| Input Voltage | 3.3V or 5V |
PINOUT DIAGRAM
This table shows how the pinout of the Hall Current 15 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| Analog Signal | AN | 1 | AN | PWM | 16 | NC | |
| NC | 2 | RST | INT | 15 | ALR | ADC Alert | |
| NC | 3 | CS | RX | 14 | NC | ||
| NC | 4 | SCK | TX | 13 | NC | ||
| NC | 5 | MISO | SCL | 12 | SCL | I2C Clock | |
| NC | 6 | MOSI | SDA | 11 | SDA | I2C Data | |
| Power Supply | 3.3V | 7 | 3.3V | 5V | 10 | 5V | Power Supply |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
ONBOARD SETTINGS AND INDICATORS
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
| JP1 | VCC SEL | Left | Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V |
| JP2 | OUT SEL | Left | Output Voltage A/D Selection AN/ADC: Left position AN, Right position ADC |
HALL CURRENT 15 CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 5 | V |
| Measurement Range @ VCC=3.3V | -5.6 | - | 55.4 | A |
| Measurement Range @ VCC=5V | -9 | - | 86 | A |
| Sensitivity | - | 50 | - | mV/A |
| Operating Temperature Range | -40 | +25 | +120 | °C |
Software Support
We provide a library for the Hall Current 15 Click Board™ as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
The package can be downloaded/installed directly from NECTO Studio The package Manager (recommended), downloaded from our LibStock™ or found on the MikroE Github account.
Library Description
This library contains API for the Hall Current 15 Click Board™ driver.
Key functions
-
hallcurrent15_read_raw_adcThis function reads the raw ADC value. -
hallcurrent15_read_voltageThis function reads the raw ADC value and converts it to a proportional voltage level. -
hallcurrent15_read_currentThis function reads the input current level [A] based on HALLCURRENT15_NUM_CONVERSIONS of voltage measurements.
Example Description
This example demonstrates the use of the Hall Current 15 Click Board™ by reading and displaying the input current measurements.
void application_task ( void )
{
float current = 0;
if ( HALLCURRENT15_OK == hallcurrent15_read_current ( &hallcurrent15, ¤t ) )
{
log_printf( &logger, " Current : %.3f[A]rnn", current );
Delay_ms( 1000 );
}
}
The full application code, and ready-to-use projects can be installed directly from NECTO Studio The package Manager (recommended), downloaded from our LibStock™ or found on the MikroE Github account.
Other MikroE Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.HallCurrent15
Additional Notes and Information
Depending on the development board you are using, you may need a USB UART Click Board™, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.
MIKROSDK
The Hall Current 15 Click Board™ is supported with mikroSDK - MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.
Hall Current 15 Click-Board
Frequently Asked Questions
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