Patent Number: 6,798,297

Title: Method and apparatus for converging a control loop

Abstract: In one embodiment, a control loop in an electrical circuit includes a variable feed-forward circuit configured to determine a setting of a variable oscillator that would result in a frequency of a first signal approximating a frequency of a second signal. The setting may be used to control the variable oscillator at a time when a phase error between the first signal and the second signal is negligibly small (e.g., substantially zero), thus allowing for relatively short loop convergence time.

Inventors: Kwan; King H. (Bellevue, WA), Stansell; Galen E. (Kirkland, WA)

Assignee: Cypress Semiconductor Corporation

International Classification: H03L 7/10 (20060101); H03L 7/099 (20060101); H03L 7/08 (20060101); H03L 7/093 (20060101); H03L 7/095 (20060101); H03L 007/08 ()

Expiration Date: 09/28/2021