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. 24, 2024
Filed:
Jul. 17, 2020
Active-semi (Shanghai) Co., Ltd., Shanghai, CN;
Thinh Ba Nguyen, Hanoi, VN;
Hue Khac Trinh, Hanoi, VN;
Active-Semi (Shanghai) Co., Ltd., Shanghai, CN;
Abstract
A direct-current to direct-current (DC-DC) converter circuit is provided. The DC-DC converter circuit is capable of generating a DC output voltage in a defined voltage range based on an input voltage. The DC-DC converter circuit can include a modulator circuit, an output filter circuit, and a compensator circuit. In a non-limiting example, the output filter circuit includes an inductor-capacitor (LC) circuit formed by an inductor and a multi-layer ceramic capacitor (MLCC). Notably, the MLCC can produce a variable capacitance in the defined voltage range due to inherent DC bias instability, thus risking stability of the DC-DC converter circuit. As such, a control circuit is configured to determine a configurable transconductance based on feedback of the output voltage and control the compensator circuit to operate accordingly. As such, it may be possible to mitigate the effect of MLCC capacitance variation, thus helping to maintain stability of the DC-DC converter circuit.