Patent ID: 6693571
Filing Date: 2004-02-17
Classification: H02M,H03F,H03K

Abstract:
An apparatus comprising:a first digital signal modulator to generate a first modulated output signal derived from a digital input signal; and first duty cycle circuitry, coupled to the first digital signal modulator, to receive first and second input signals, which are respective subsets of samples of the first modulated output signal, wherein the first duty cycle circuitry responds to the first and second input signals and respectively generates a first output signal and a second output signal; wherein during operation of the first digital signal modulator and the first duty cycle circuitry, a duty cycle of the first output signal has a direct relationship to change in the digital input signal, a duty cycle of the second output signal has an inverse relationship to change in the digital input signal, and the first and second output signals are suitable for driving an opposed current converter stage.