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:
Apr. 02, 2019
Filed:
May. 12, 2015
Lattice Semiconductor Corporation, Portland, OR (US);
Kexin Luo, Shanghai, CN;
Rui Yin, Shanghai, CN;
Xiaofeng Wang, Shanghai, CN;
Jie Yuan, Shanghai, CN;
Qiming Wu, Shanghai, CN;
Fei Song, Shanghai, CN;
Min-Kyu Kim, Sunnyvale, CA (US);
Lattice Semiconductor Corporation, Portland, OR (US);
Abstract
Embodiments relate to a voltage oscillator (VCO) that uses a replica bias circuit to generate a cascode bias voltage. The VCO generate an output periodic signal having a frequency and phase that is less or not susceptible to voltage swings by using a bias voltage generated in a replica bias circuit that replicates a voltage-to-current converter in the VOC. The bias voltage is generated and regulated according to a power supply voltage that supplies power to the VCO to account for voltage variations in the power supply voltage.