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mikroSDK Library

VREG 2 click

Rating:

5

Author: MikroElektronika Team

Last Updated: 2018-06-21

Category: Power supply

Downloaded: 978 times

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License: MIT license  

VREG 2 click is a voltage regulator click, with outstanding performances. It has a steady output voltage with the ripple lower than 5mV, short circuit protection with the LED indicator, and high efficiency with minimal power dissipation.

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mikroSDK Library Blog

VREG 2 click

VREG 2 click

Native view of the VREG 2 click board.

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VREG 2 click

VREG 2 click

Front and back view of the VREG 2 click board.

View full image

This library provides parsing functions that will allow a user to control the voltage output by inputting user-defined parameters.

Key functions:

  • void vreg2_workParameters(uint8_t setA, uint8_t setB, uint8_t setC, uint8_t setD) - Function for setting work parameters for setting the output voltage in %.
  • int8_t vreg2_incHandler(uint8_t *in); - If the setA parameter has been received this function will return the value of 1.
  • int8_t vreg2_decHandler(uint8_t *in); - If the setB parameter has been received this function will return the value of -1.
  • uint8_t vreg2_printHandler(uint16_t *pwm); - This function returns flags based on the internal parser state.

Examples Description

The application is composed of three sections:

  • System Initialization - Initializes GPIO structures.
  • Application Initialization - Initializes the GPIO driver and configures the PWM
    peripheral for controlling VREG2 voltage output.
  • Application Task - (code snippet) - Based on the data received from the UART
    the voltage output will be increased or decreased.
void applicationTask()
{
 if( UART_Rdy_Ptr() )
 {
 rxDat[0] = UART_Rd_Ptr();
 vreg2_eventTick();
 }

 pwmDuty += vreg2_incHandler( &rxDat );
 pwmDuty += vreg2_decHandler( &rxDat ); 
 vreg2_parseInput( &rxDat, &parseVoltage[0] , &pwmDuty );
 temp = vreg2_printHandler( &pwmDuty );

 if( temp == VREG2_VOLTAGE_SET )
 {
 WordToStr( pwmDuty, text );
 mikrobus_logWrite( "Voltage set to : ", _LOG_TEXT );
 mikrobus_logWrite( text, _LOG_TEXT );
 mikrobus_logWrite( " %", _LOG_LINE );
 }
 if( temp == VREG2_BACKSPACE_PRESSED_HANDLE )
 {
 mikrobus_logWrite( " ", _LOG_LINE );
 mikrobus_logWrite( parseVoltage, _LOG_TEXT );
 }
 if( temp == VREG2_CHARACTER_RECEIVED )
 {
 mikrobus_logWrite(rxDat,_LOG_TEXT);
 }
 if( temp == VREG2_NUMBER_PARSER_ENABLED )
 {
 mikrobus_logWrite( "Insert value from 1 to 99%", _LOG_LINE );
 }

 vreg2_set( pwmDuty );
 rxDat[0] = 0;
}

Additional Functions:

  • void vreg2_set(uint16_t pwmIn) - Set's the PWM output from 0 to 100%.
  • void vreg2_pwmInit() - Initializes the PWM peripheral.

The full application code, and ready to use projects can be found on our Libstock page.

Other mikroE Libraries used in the example:

  • PWM Library
  • UART Library
  • Conversions Library
  • C_String Library

Additional notes and information

Depending on the development board you are using, you may need USB UART click,  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. 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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