Programmable DC voltage generator

Details Programmable DC voltage generator Programmable DC voltage generator

2005-07-05

2005-07-05

Wamsley, Patrick (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C327S538000

Reexamination Certificate

active

06914548

ABSTRACT:
An efficient technique for generating accurate on-chip DC reference voltages is based on filtering a digital pulse modulated sequence in order to extract its average value encoding a DC level, A passive on-chip filter is used for simplicity with an all-digital modulator implementation. Modulation is proposed using pulse-width and preferably pulse-density modulation methods. The latter has the advantage of using a significantly smaller filter which translates into a smaller implementation and faster operational settling times. Many digital pulse modulation generators are proposed.

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patent: 6703957 (2004-03-01), Morimoto et al.
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