how to check single phase half bridge IC from component?

[tengyy]

how to check polarity single phase half bridge IC from component?

and What is the meaning of symbol " ~ “ on the component ?

https://html.alldatasheet.com/html-pdf/46429/SSE/DF06/43/1/DF06.html

 

[FvM]

The well-known symbol for AC voltage. In this case designating the rectifier input side.

 

[Surendhar Murugan]

It is single phase bridge rectifier circuit. So you need to connect the stepped down AC at the symbol side and need to obtain the output from the side where + and - symbol is represented.