What is the function of an audio transformer?
Audio transformers can: 1) Step up (increase) or step down (decrease) a signal voltage; 2) Increase or decrease the impedance of a circuit; 3) Convert a circuit from unbalanced to balanced and vice versa; 4) Block DC current in a circuit while allowing AC current to flow; 5) Electrically isolate one audio device from
Where are audio transformers used?
Audio Frequency (AF) Transformers work at frequencies between about 20Hz to 20kHz and are used in audio amplifier circuits, they were essential in valve (tube) designs for matching the high impedance outputs of theses amplifiers to low impedance loudspeakers, but transistor amplifiers have much less need for output
What is the difference between an audio transformer and a power transformer?
Audio transformers offer a wider frequency response and a known primary/secondary impedance compared to a typical power transformer allowing impedance transformers to obtain high levels of signal integrity while maximizing power transfer.