Hero999
Banned
If the output waveform is 10V peak and the power supply is 40V only 10% of the power is being delivered to the speaker at that instant. If the power supply is only 15V 66.67% of the power is being delivered to the speaker at that instant.
The problem is if we run it from a 15V supply alone the output power capability will be significantly reduced.
This is where class H comes in, power is only taken from the higher voltage rails when it's needed.
The extra power supplies don't use that much power when idling, in fact they don't use any extra power if it's just a case of adding more taps to a transformer.
The problem is if we run it from a 15V supply alone the output power capability will be significantly reduced.
This is where class H comes in, power is only taken from the higher voltage rails when it's needed.
The extra power supplies don't use that much power when idling, in fact they don't use any extra power if it's just a case of adding more taps to a transformer.