Power MUX click
Power MUX Click features power multiplexer that enables transition between two power supplies (such as a battery and a wall adapter), each operating at 2.8V to 5.5V and delivering up to 2A current depending on the package. This IC provides inrush current control and thermal protection to Power MUX Click, manual and auto-switching operating modes, cross-conduction blocking, and reverse-conduction blocking.
click Product page
Click library
- Author : Mikroe Team
- Date : Sep 2021.
- Type : GPIO type
Software Support
We provide a library for the PowerMUX Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
Library Description
This library contains API for PowerMUX Click driver.
Standard key functions :
powermux_cfg_setup
Config Object Initialization function.
powermux_init
Initialization function.
powermux_default_cfg
Click Default Configuration function.
Example key functions :
powermux_int_pin_read
Power MUX pin reading function.
powermux_set_mode
Power MUX mode set function.
Example Description
This Click features power multiplexer that enables transition between two power supplies, each operating at 2.8V to 5.5V and delivering up to 2A current depending on the package.
The demo application is composed of two sections :
Application Init
Enables GPIO and starts write log.
{
log_cfg_t log_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
if ( DIGITAL_OUT_UNSUPPORTED_PIN ==
powermux_init( &powermux, &powermux_cfg ) ) {
log_error( &logger, " Communication init." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
log_printf( &logger, "-----------------------------\r\n " );
log_printf( &logger, " Select mode: \r\n " );
log_printf( &logger, "-----------------------------\r\n " );
log_printf( &logger, " 1. Input from channel 1. \r\n " );
log_printf( &logger, " 2. Input from channel 2. \r\n " );
log_printf( &logger, " 3. Input OFF. \r\n " );
log_printf( &logger, " 3. Auto mode. \r\n " );
log_printf( &logger, "-----------------------------\r\n " );
}
Application Task
Waits for user input in order to change input mode of the Power MUX Click.
{
char uart_char;
if ( log_read( &logger, &uart_char, 1 ) ) {
switch ( uart_char ) {
case '1' : {
log_printf( &logger, " Output mode : Input channel 1 \r\n " );
log_printf( &logger, "-----------------------------\r\n " );
break;
}
case '2' : {
log_printf( &logger, " Output mode : Input channel 2 \r\n " );
log_printf( &logger, "-----------------------------\r\n " );
break;
}
case '3' : {
log_printf( &logger, " Output mode : Input channels OFF \r\n " );
log_printf( &logger, "-----------------------------\r\n " );
break;
}
case '4' : {
log_printf( &logger, " Output mode : AUTO \r\n " );
log_printf( &logger, "-----------------------------\r\n " );
break;
}
default : {
log_printf( &logger, " Select mode: \r\n " );
log_printf( &logger, "-----------------------------\r\n " );
log_printf( &logger, " 1. Input from channel 1. \r\n " );
log_printf( &logger, " 2. Input from channel 2. \r\n " );
log_printf( &logger, " 3. Input OFF. \r\n " );
log_printf( &logger, " 3. Auto mode. \r\n " );
log_printf( &logger, "-----------------------------\r\n " );
break;
}
}
}
}
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
Other Mikroe Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.PowerMUX
Additional notes and informations
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. UART terminal is available in all MikroElektronika compilers.