Regular class D power amplifier as shown, the power supply for the power supply positive and negative electric power supply,


Now want to use tpa3245 integrated class D power amplifier chip, this chip for single power supply, only + 24 v power supply


The input signal is positive and negative signals,

No negative charges, this is how to work? How to enlarge the negative half shaft voltage?

CodePudding user response:

Between the loudspeaker is not in the OUT_A and GND
Between the speaker is in the OUT_A OUT_B, is difference,
So you don't have to consider the negative half shaft voltage, also do not need to separate condenser,
Horn, of course, also need some LC filter to OUT_A OUT_B connection.