Dab tsi yog transformer: Ib qho kev hloov pauv feem ntau muaj ob txoj haujlwm, ib qho yog puck-boost muaj nuj nqi, thiab lwm yam yog impedance txuam ua haujlwm.Wb tham txog kev txhawb nqa ua ntej.Muaj ntau yam voltages feem ntau siv, xws li 220V rau lub neej teeb pom kev zoo, 36V rau industrial kev nyab xeeb lighti ...
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