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  _____      ___                 ___      _____   
 /  ___||   / _ \\    ____      / _ \\   /  ___|| 
| // __    / //\ \\  |    \\   / //\ \\ | // __   
| \\_\ || |  ___  || | [] ||  |  ___  ||| \\_\ || 
 \____//  |_||  |_|| |  __//  |_||  |_|| \____//  
  `---`   `-`   `-`  |_|`-`   `-`   `-`   `---`   
                     `-`

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Text this: Phase-shifted PWM strategy of a seven-level single-phase current source inverter for grid-connection systems