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:
Mar. 12, 2019
Filed:
Oct. 25, 2017
Applicant:
Novatek Microelectronics Corp., Hsinchu, TW;
Inventors:
Assignee:
Novatek Microelectronics Corp., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/08 (2006.01); H03F 3/45 (2006.01); H03F 3/30 (2006.01); H03F 1/52 (2006.01);
U.S. Cl.
CPC ...
H03F 1/083 (2013.01); H03F 1/52 (2013.01); H03F 1/523 (2013.01); H03F 3/303 (2013.01); H03F 3/45475 (2013.01); H03F 2200/129 (2013.01); H03F 2200/153 (2013.01); H03F 2200/444 (2013.01); H03F 2203/30036 (2013.01); H03F 2203/45218 (2013.01); H03F 2203/45654 (2013.01); H03F 2203/45658 (2013.01); H03F 2203/45686 (2013.01); H03F 2203/45702 (2013.01);
Abstract
An amplifier circuit including an input amplifier, an output amplifier and a diode device is provided. The output amplifier is coupled to the input amplifier and outputting an output voltage. The diode device is coupled between an output end and an input end of the output amplifier. When a voltage difference between the output end and the input end of the output amplifier is greater than a barrier voltage of the diode device, the diode device is turned on, and an overshoot of the output voltage is reduced. The diode device includes a variable resistor to increase the barrier voltage of the diode device.