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:
Feb. 02, 2016
Filed:
Jul. 23, 2013
Analog Devices, Inc., Norwood, MA (US);
Hio Leong Chao, San Jose, CA (US);
Lawrence H. Edelson, Fremont, CA (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
A voltage-controlled oscillator (VCO) comprises a supply voltage node, configured to receive a supply voltage, a VCO output capacitor, configured to provide an oscillating output voltage across the capacitor, a discharge switch configured to discharge the capacitor according to an oscillation frequency of the oscillating output voltage, and a comparator circuit configured to provide, to a control terminal of the discharge switch, a control signal that is determined based on a comparison of the output voltage and a specified threshold voltage. The oscillating output voltage includes a pulse having a ramp slope that is determined as a function of a magnitude of the supply voltage, and is capable of being adjusted independently of the oscillation frequency.