Text this: Modulation and control strategies for neutral-point-clamped converters

 _____       ___     ______      ___      _____   
|  __ \\    / _ \\  |      \\   / _ \\   / ____|| 
| |  \ ||  | / \ || |  --  //  / //\ \\ / //---`' 
| |__/ ||  | \_/ || |  --  \\ |  ___  ||\ \\___   
|_____//    \___//  |______// |_||  |_|| \_____|| 
 -----`     `---`   `------`  `-`   `-`   `----`