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:
Oct. 20, 2020
Filed:
Jul. 31, 2019
Ncku Research and Development Foundation, Tainan, TW;
Himax Technologies Limited, Tainan, TW;
Kai-Yu Hu, Tainan, TW;
Chien-Hung Tsai, Tainan, TW;
NCKU Research and Development Foundation, Tainan, TW;
Himax Technologies Limited, Tainan, TW;
Abstract
A digital constant on-time controller adaptable to a direct-current (DC)-to-DC converter includes a current sensing circuit that senses stored energy of the DC-to-DC converter, thereby generating a sense voltage; a semi-amplitude detector that detects half of a peak-to-peak amplitude of the sense voltage, thereby generating a semi-amplitude voltage; a DC voltage detector that detects a DC voltage across an effective series resistor of an energy storage circuit that provides the stored energy of the DC-to-DC converter, thereby generating a DC voltage; an arithmetic device that adds the sense voltage and the semi-amplitude voltage, from which the DC voltage and a predetermined reference signal are subtracted; and a pulse-width modulation (PWM) generator that generates a switch control signal according to a result of the arithmetic device.