Adaptive power controller digital interface

Details Adaptive power controller digital interface Adaptive power controller digital interface

2006-08-08

2006-08-08

Mis, David (Department: 2817)

Oscillators

With particular source of power or bias voltage

Regulated

C331S002000, C327S540000

Reexamination Certificate

active

07088197

ABSTRACT:
A digital adaptive power supply interface has two feedback loops, each including a VCO, to automatically compensate for temperature and semiconductor process variations. A first loop compares the system input phase/frequency to a reference voltage that has been converted to a first digital frequency signal by a VCO in the first loop, and generates an analog difference signal. The second loop compares this analog difference with the power supply output voltage, and a VCO in this second loop converts result of this comparison to a second digital frequency signal. The digital frequency signals of the two loops are fed respectively to two registers and the content of the registers are subtracted, one from the other, to generate a digital error signal adjust the power supply output voltage to the input frequency.

REFERENCES:
patent: 6366522 (2002-04-01), May et al.
patent: 6737925 (2004-05-01), Logue et al.
patent: 6801028 (2004-10-01), Kernahan et al.
patent: 6924679 (2005-08-01), Seno et al.
patent: 2005/0062507 (2005-03-01), Naffziger et al.
patent: 2006/0064609 (2006-03-01), Bryan
Wei, Gu-Yeon et al., “A Fully Digital, Energy-Efficient, Adaptive Power-Supply Regulator,”IEEE Journal of Solid-State Circuits, Apr. 1999, pp. 520-528, vol. 34, No. 4.
Alvarez, Jose et al., “A Wide-Bandwidth Low-Voltage PLL for PowerPC™ Microprocessors,”IEEE Journal of Solid-State Circuits, Apr. 1995, pp. 383-391, vol. 30, No. 4.

Affiliated with

Also associated with

Rating

Adaptive power controller digital interface does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive power controller digital interface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive power controller digital interface will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3698045