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I hate to ask a dumb question but I need to know. I see VPWR referred to in many publications and I'm not sure what it means. I think it means "Vehicle Power" please let me know if I'm right.
The general accepted practice is to reference Voltage with V and add a subscript if they like as in Vpwr. The pwr could mean power or maybe not. The subscript is usually done because the circuit may have multiple V's. If it is written as VPWR it is probably the same and often done because they can't use a subscript in their printing.