Integrated voltage regulator with in-built process, temperature and aging compensation
First Claim
1. A method for regulating voltage for a processor, said method comprising:
- requesting a target frequency value, wherein the target frequency value determines a target clock frequency for clocking the processor;
comparing the target clock frequency to a first signal to generate an error signal;
using the error signal, generating a duty cycle control signal, wherein the duty cycle control signal is operable to generate a periodic waveform; and
generating an output regulator voltage using the periodic waveform, wherein the output voltage is operable to provide power to the processor.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for regulating voltage for a processor is disclosed. The method comprises requesting a target frequency value, wherein the target frequency value determines a target clock frequency for clocking the processor. The method also comprises comparing the target clock frequency to a first signal to generate an error signal. Further, the method comprises using the error signal to generate a duty cycle control signal, wherein the duty cycle control signal is operable to generate a periodic waveform. Finally, the method comprises generating an output regulator voltage using the periodic waveform, wherein the output voltage is operable to provide power to the processor.
116 Citations
14 Claims
-
1. A method for regulating voltage for a processor, said method comprising:
-
requesting a target frequency value, wherein the target frequency value determines a target clock frequency for clocking the processor; comparing the target clock frequency to a first signal to generate an error signal; using the error signal, generating a duty cycle control signal, wherein the duty cycle control signal is operable to generate a periodic waveform; and generating an output regulator voltage using the periodic waveform, wherein the output voltage is operable to provide power to the processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. An apparatus for regulating processor voltage, said apparatus comprising:
-
a comparator, having a first input operable to be set at a target frequency value, and wherein the target frequency value determines a target clock frequency for clocking a processor; a dynamic voltage controlled oscillator (DVCO) operable to generate a clock signal with a first frequency, wherein the first frequency is an operating frequency of the processor and is a second input to the comparator, wherein the first frequency is a function of the output regulator voltage, wherein the DVCO is powered by the output regulator voltage, and wherein the first frequency is compared with the target clock frequency using the comparator to generate an error signal; and a circuit operable to generate an output regulator voltage using the error signal, wherein the output regulator voltage is operable to supply power to the processor. - View Dependent Claims (10, 11, 12, 13, 14)
-
Specification