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:
Sep. 04, 2018
Filed:
Mar. 26, 2015
Microchip Technology Incorporated, Chandler, AZ (US);
Sean Stacy Steedman, Phoenix, AZ (US);
Yong Yuenyongsgool, Gilbert, AZ (US);
Jacobus Albertus van Eeden, Chandler, AZ (US);
Joseph Julicher, Maricopa, AZ (US);
Marilena Dracea, Bucuresti, RO;
MICROCHIP TECHNOLOGY INCORPORATED, Chandler, AZ (US);
Abstract
A digitally controlled ramp generator has a constant current source, a first controllable switch coupled between the constant current source and an output node, a capacitor coupled with the output node, a second controllable switch coupled with the output node, a constant current sink coupled with the second controllable switch, and a control unit. The control unit is configured in a first operating mode to select control signals for the first and second controllable switch to generate a rising waveform by charging said capacitor through the first controllable switch and a falling waveform by discharging the capacitor through the second controllable switch wherein the control signals can be selected from the group of a time based control signal and a voltage based control signal. A variety of other control modes may be provided.