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:
Mar. 06, 2012
Filed:
Oct. 31, 2008
Jonathan Mark Audy, Los Gatos, CA (US);
Jonathan Mark Audy, Los Gatos, CA (US);
Analog Devices, Inc, Norwood, MA (US);
Abstract
A single integrator sensorless current mode control scheme for a switching power converter requires an amplifier circuit which produces an first current that varies with the difference Vbetween a reference voltage and a voltage that varies proportionally with V, a circuit which produces a second current that varies with the voltage Vacross the output inductor, a single integrating element connected to receive the first and second currents such that it integrates both Vand V, and a comparator which receives the integrated output at its first input and a substantially fixed voltage at its second input and produces an output that toggles when the voltage at its first input increases above and falls below the substantially fixed voltage. The comparator output is used to control the operation of the power converter's switching circuit and thereby regulate the output voltage.