The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2011
Filed:
Jul. 10, 2009
Ziche Zhang, Chengdu, CN;
Guosheng Wu, Chengdu, CN;
Ziche Zhang, Chengdu, CN;
Guosheng Wu, Chengdu, CN;
IPGoal Microelectronics (SiChuan) Co., Ltd., High-Tech Incubation Park, Chengdu, Sichuan Province, CN;
Abstract
A phase delay line comprises a phase-locked loop, a duty-cycle adjusting ring and a voltage-sharing to time-sharing converter, wherein the phase-locked loop and the duty-cycle adjusting ring form a loop, and one output of the phase-locked loop is connected with the input of the voltage-sharing to time-sharing converter. The voltage can be precisely divided, and the number of the phases can be easily controlled and expanded. The band gap reference technology enables the working points not affected by the temperature. The negative feedback mechanism of the phase-locked loop determines the period, phase, duty-cycle of the sawtooth wave are same with the reference clock. The ascending and descending time of the sawtooth wave are precisely equal.