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In the wiki link, Motor Velocity constant is given as:

Kv equation

Is 'Vpeak' the peak Phase to Phase voltage OR the peak Phase to Neutral voltage?

Phase to Phase OR Phase to Phase

In the same wiki link they give an example:

Example in wiki

Here the unit of Kv is RPM/V, again the 'V' in the denominator is the peak voltage between two phases?

In the same wiki, the Back EMF constant is mentioned in Volts/KiloRPM. Looking at a few motor data sheets, I see that generally given in Vp/kRPM. In this context this is still Phase to Phase peak voltage?

I think they are Phase to Phase peak voltages, because generally the midpoint(neutral) is not brought out. Could you kindly confirm my assumption.

Motor Data Sheet Example 1

Data Sheet Link

Motor Data Sheet Example 3

Data Sheet Link

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    \$\begingroup\$ @Velvet Thanks, I have edited my question to reflect all the sources \$\endgroup\$
    – AK47
    Commented Aug 13 at 8:44

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