Yes, we all read that - but I am sure that most of us did not 'assume' that he was necessarily referring to a wire-wound component. Never assume!
Kind Regards, John
I didn't assume. By definition a transformer IS a wire wound component.
Yes, we all read that - but I am sure that most of us did not 'assume' that he was necessarily referring to a wire-wound component. Never assume!
Kind Regards, John
Most switch mode power supplies and most DC power supplies contain as their main component a wire wound transformer, and they transform 230 volt into a lower voltage with some current limit. What is inside the black plastic case does not interest the user, nor does what it is called, switch mode power supply, pulse width modulated power supply, battery eliminator, driver, or transformer it does not matter.
All that matters is AC or DC, voltage or current regulated, voltage output and current output.
You did assume - you assumed that the OP was using terminology in the traditional (which you would call 'only correct') manner, despite the fact that we know (even if you/we don't like it) that a substantial, probably high, proportion of the general public (not to mention many parts of the industry) do not use 'correct' terminology.I didn't assume. By definition a transformer IS a wire wound component.
You did assume - you assumed that the OP was using terminology in the traditional (which you would call 'only correct') manner, despite the fact that we know (even if you/we don't like it) that a substantial, probably high, proportion of the general public (not to mention many parts of the industry) do not use 'correct' terminology.
Assuming is always dangerous, particularly when there is a substantial probability of the assumption being wrong!
Kind Regards, John
Some even use electricity to allow them to transform, so today as you say you do need to specify the type of transformer, missing out "wire wire wound" is as bad as missing out "electronic" one should never assume. A transformer is NOT by definition wire wound, you need to specify that like any other feature like iron core etc.
Not correct. They are the same for any load with a unity power factor.VA and watts are not the same thing except for resistive loads
True.Not correct. They are the same for any load with a unity power factor.
Watts = VA x power factor.
I don't really understand. That is surely precisely the situation in which Watts and VA can be roughly (or even exactly) the same despite the load being non-resistive (or, at least, not entirely resistive). In what sense do you think that it is 'not that simple'? - I would have said that winston's formula for the relationship between watts, VA and PF always holds, essentially 'by definition'.Generally true but it is not that simple when the power is supplying inductive loads and capacitive loads that are balanced to provide a power factor of approx 1.
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