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Viper 16LD, Non Isolated Buck Regulation issue

Question asked by Vamsi Yaram on Oct 26, 2017

The output Voltage expected is 6V and output is constant for 110VAC input. But the output is turning ON/OFF for 220V input. Please let me know to resolve this issue.

 

Schematic

 

 

 No Load Output VoltageOutput Voltage @ 100mA Load

Outcomes