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. 26, 2014
Filed:
Oct. 09, 2013
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Martin Kinyua, Cedar Park, TX (US);
Ruopeng Wang, Shanghai, CN;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Abstract
An amplifier includes a first stage, a second stage coupled to the first stage, and a summation circuit. The first stage is configured to receive an analog input signal, convert the analog input signal to a digital signal, and output an intermediate analog output signal in response to the digital signal. The second stage is configured to output a second analog intermediate output signal based on a scaled pulse width modulation quantization error of the first stage. The summation circuit is configured to combine the first and second analog intermediate output signals to generate an amplified output signal.