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:
Dec. 03, 2024
Filed:
Dec. 03, 2020
Rohm Co., Ltd., Kyoto, JP;
Isao Takobe, Kyoto, JP;
Masashi Nagasato, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
An output feedback control circuit includes, as a means for generating an error signal ERR between a feedback voltage FB commensurate with an output voltage and a reference voltage REF (means for substituting for a single error amplifier), a first signal processor (for example, an amplifier) that forms a first path, and a second signal processor (for example, an amplifier) that forms a second path. The amplifieris more accurate than the amplifier, and the amplifieris faster than the amplifier. To the output terminal of the amplifier, preferably, a capacitor Cc other than a parasitic element is connected. To the output terminal of the amplifier, preferably, no capacitor other than a parasitic element is connected, and a resistor Rc is connected. Preferably, the amplifierhas a transconductance gm1, and the amplifierhas a transconductance gm2 (≠gm1).