Digital-to-analog converter (DAC) using multiple PWMs and...

Details Digital-to-analog converter (DAC) using multiple PWMs and... Digital-to-analog converter (DAC) using multiple PWMs and...

2007-11-20

2007-11-20

Mai, Lam T. (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S144000

Reexamination Certificate

active

11464829

ABSTRACT:
A digital-to-analog converter (DAC) for generating an analog output voltage according to a digital input value includes a plurality of pulse width modulation (PWM) units and a voltage generating unit. The digital input value includes a plurality of bit segments. The plurality of PWM units generates a plurality of PWM signals according to the plurality of bit segments of the digital input value. The voltage generating unit is coupled to the plurality of PWM units and generates the analog output voltage according to the plurality of PWM signals.

REFERENCES:
patent: 4908710 (1990-03-01), Wakai et al.
patent: 5872603 (1999-02-01), Ohsawa
patent: 6362766 (2002-03-01), Rowan et al.
patent: 6606046 (2003-08-01), Kanno
patent: 6801146 (2004-10-01), Kernahan et al.
patent: 7019502 (2006-03-01), Walters et al.

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