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mikroSDK Library

3 x Buck click

Rating:

5

Author: MikroElektronika Team

Last Updated: 2018-09-19

Category: Power supply

Downloaded: 589 times

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3xBuck click is a triple step-down (buck) converter Click board. It features three independent output terminals that can provide 1.8V, 3.3V, and 5V with the combined current output up to 3A.

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mikroSDK Library Blog

3xBuck click

3xBuck click

Native view of the 3xBuck click board.

View full image
3xBuck click

3xBuck click

Front and back view of the 3xBuck click board.

View full image

Library Description

The library initializes and defines the I2C bus driver and drivers that offer a choice for writing data in registers and reading data from registers. The library includes functions for set output voltage, enable and disable buck, configuration buck and read buck status.

Key functions:

  • void c3xbuck_enableBuck(uint8_t buck) - Function for enable Buck
  • void c3xbuck_setVoltage(uint8_t buck, uint8_t voltage) - Function for set output voltage
  • void c3xbuck_configurationBuck(uint8_t buck, uint8_t config) - Function for configuration buck

Examples description

The application is composed of the three sections :

  • System Initialization - Initializes I2C module and set INT pin, PWM pin and AN pin as OUTPUT
  • Application Initialization - Initializes the driver init, enable and configuration Buck 1, Buck 2 and Buck 3c
  • Application Task - (code snippet) - Sets variable output voltage and default output voltage
  • note: Default output voltage on Buck 1 is 1800mV, Buck 2 is 3300mV and Buck 3 is 5000mV Variable output voltage on all Bucks from 680mV to 1950mV
void applicationTask()
{
	
    c3xbuck_setVoltage(_C3XBUCK_SELECT_BUCK_1, _C3XBUCK_OUTPUT_VOLTAGE_1000mV);
    c3xbuck_setVoltage(_C3XBUCK_SELECT_BUCK_2, _C3XBUCK_OUTPUT_VOLTAGE_1250mV);
    c3xbuck_setVoltage(_C3XBUCK_SELECT_BUCK_3, _C3XBUCK_OUTPUT_VOLTAGE_1500mV);
    Delay_ms( 5000 );
    
    c3xbuck_setVoltage(_C3XBUCK_SELECT_BUCK_1, _C3XBUCK_BUCK_DEFAULT_OUTPUT_VOLTAGE);
    c3xbuck_setVoltage(_C3XBUCK_SELECT_BUCK_2, _C3XBUCK_BUCK_DEFAULT_OUTPUT_VOLTAGE);
    c3xbuck_setVoltage(_C3XBUCK_SELECT_BUCK_3, _C3XBUCK_BUCK_DEFAULT_OUTPUT_VOLTAGE);
    Delay_ms( 5000 );

}

Other mikroE Libraries used in the example:

  • I2C

Additional notes and information

Depending on the development board you are using, you may need USB UART clickUSB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

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