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. 27, 2021
Filed:
Mar. 12, 2019
Samsung Electronics Co., Ltd., Suwon-si, KR;
Kyu-Ik Cho, Hwaseong-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A ramp signal generator is provided, and includes a sampling capacitor, a current cell circuit, a current to voltage converter, and a tuning circuit. The sampling capacitor is connected between a power supply voltage and a sampling node. The current cell circuit provides a first output node with a first ramping current during a ramping period, in response to a sampled bias voltage of the sampling node and switching code pairs. The current to voltage converter includes a first load resistor connected between the first output node and a ground voltage, and converts the first ramping current to a first ramp signal. The tuning circuit is connected between the first output node and the sampling node, and includes a capacitor to couple the sampling node and the first output node. The tuning circuit adjusts a degree of nonlinearity of the first ramp signal in response to a tuning signal.