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Power stage

  • US 8,373,454 B2
  • Filed: 07/01/2010
  • Issued: 02/12/2013
  • Est. Priority Date: 07/02/2009
  • Status: Active Grant
First Claim
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1. A driver circuit, comprising:

  • an output stage arranged between high and low voltage railsat least one buffer stage having a high side buffer and a low side buffer wherein an output of a last buffer stage is connected to the output stage and an input of a first buffer stage is connected to an circuit input;

    wherein the output stage is a differential output stage having a pair of high side differential inputs, a pair of low side differential inputs and a pair of differential stage outputs; and

    in each buffer stage the high side buffer and the low side buffer are each differential buffers with a pair of differential inputs and a pair of differential outputs, each buffer stage being a self-biasing differential buffer stage, andeach of the high side buffers is implemented by transistors with an isolated well.

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