Switching circuits

Details Switching circuits Switching circuits

2006-04-25

2006-04-25

Nguyen, Khanh V. (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S270000, C330S251000

Reexamination Certificate

active

07034609

ABSTRACT:
A technique to implement removal of dead time control circuitry from the back-end of a digital switching amplifier system100and add dead time control circuitry on the front-end digital modulator chip. The front-end dead time control circuitry adaptively adjusts timing of the output PWM control signals124to optimize performance and power consumption, i.e. operate with minimum dead time for all transitions. The front-end dead time control circuitry controls all propagation delays associated with the digital switching amplifier system100.

REFERENCES:
patent: 4554512 (1985-11-01), Aiello
patent: 5077540 (1991-12-01), Keith et al.
patent: 6127885 (2000-10-01), Colangelo
patent: 6294954 (2001-09-01), Melanson
patent: 6362683 (2002-03-01), Miao et al.
patent: 6414614 (2002-07-01), Melanson

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