Is the transformer a power adapter?
It depends on the transformer voltage, current, power and other data can be suitable for your job requirements of a machine. Such as computers
Power adapter is a transformer, it should be said that the power adapter is a transformer, rather than that the transformer is a power adapter. Like Baidu is the site, the site is not Baidu ah.
No, the transformer should be a device that performs impedance matching in order to achieve maximum power transmission.
In turn, "power adapter is a transformer" is also unsatisfactory, at least the general power adapter contains a transformer.
As a power adapter requires a common power supply into a device required power, voltage, current, impedance and other aspects of the match, of course, it needs a transformer. Since it has the function of changing the voltage, call it "transformer" is no harm. I would like to say that the power adapter is not only transformer, it needs to achieve in addition to the voltage other than the parameters of the match, for example, the most simple general-purpose DC adapter in addition to transformer that there is a "rectification" process. The transformer, narrow sense that it is just a component only, like resistors, capacitors, transistors and so on.
