Switching power amplifier
AssigneeKoninklijke Philips Electronics N.V.
InventorBruno Johan Georges Putzeys
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Abstract
Switching power amplifiers are used for example in audio applications. Using Class D technology is used to obtain efficient performance. To improve the switching power amplifier further it is proposed to combine a plurality of low-power switching power stages into a larger amplifier. The precision and efficiency of a switching power amplifier is improved without deteriorating the noise and EMI.
Claims11
Switching power amplifier comprising an input unit for converting the input signal, a plurality of parallel low power switching power stages, a driving unit to drive stages and a summation unit for summing the output signals of the power stages.
Method to drive a switched power amplifier.
Dependencies are inferred from the claim text.