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:
Aug. 25, 2026
Filed:
Oct. 07, 2024
Airoha Technology Corp., Hsinchu City, TW;
Chen-Yu Wang, New Taipei City, TW;
Ke-Deng Huang, New Taipei City, TW;
Airoha Technology Corp., Hsinchu City, TW;
Abstract
A calibration circuit of a pulse-frequency modulation (PFM) converter includes a signal generator circuit and a calibration control circuit. The signal generator circuit generates and outputs an emulated slope signal to a comparator circuit under a calibration mode, wherein the emulated slope signal has an emulated slope following an initial voltage, and the emulated slope corresponds to a slope of a sensed signal indicative of electrical characteristic of an inductor of the PFM converter. The calibration control circuit refers to an output signal that is generated from a PFM control circuit in response to an output signal of the comparator circuit, to calibrate at least one circuit of the PFM converter.