Patent ID: 6861902
Filing Date: 2005-03-01
Classification: H03F

Abstract:
1. A differential power amplifier arrangement comprising a pair of differential input terminals to which a differential input voltage can be applied, and a pair of differential output terminal for coupling to a load said differential power amplifier arrangement comprising a first self-oscillating loop with an input terminal coupled to a first one of said pair of differential input terminals, said first self-oscillating loop including a first comparator coupled to a first digital buffer, an output terminal of which is coupled to a second input terminal of said first comparator via a first low-pass filter, said differential power amplifier arrangement incuding a second self-oscillating loop with an input terminal coupled to a second one of said pair of differential input terminals, said second self-oscillating loop comprising a second comparator coupled to a second digital buffer, an output terminal of which is coupled to a second input terminal of said second comparator via a second low-pass filter.