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:
Jun. 24, 2025
Filed:
Dec. 15, 2021
Infineon Technologies Ag, Neubiberg, DE;
Mario Motz, Wernberg, AT;
Yongjia Li, Nan Jing, CN;
Andrei-George Roman, Bucaresti, RO;
Dragos Vocurek, Bucharest, RO;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A chopper amplifier circuit includes a modulator circuit tuned to a chopper frequency, the modulator circuit being configured, in accordance with the chopper frequency, to convert a voltage into an AC voltage; an amplifier circuit having an inverting input and a non-inverting input for the AC voltage, and having an inverting output and a non-inverting output for providing an amplified AC voltage; and a demodulator circuit tuned to the chopper frequency, the demodulator circuit being configured to convert the amplified AC voltage into an amplified DC voltage. The demodulator circuit is configured to, during different switching phases, couple each of the inverting and non-inverting outputs of the amplifier circuit, both directly and capacitively, to each inverting and non-inverting input of a summing circuit.