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:
Jan. 27, 2009
Filed:
Aug. 31, 2006
Youn Joong Lee, Seoul, KR;
Won Tae Choi, Yongin, KR;
Chan Woo Park, Ansan, KR;
Byung Hoon Kim, Seoul, KR;
Youn Joong Lee, Seoul, KR;
Won Tae Choi, Yongin, KR;
Chan Woo Park, Ansan, KR;
Byung Hoon Kim, Seoul, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon-Si, Gyunggi-Do, KR;
Abstract
Provided is an output buffer circuit having a slew rate increasing part configured with a switching element. The output buffer circuit can obtain an output voltage having a high slew rate even though a smaller amount of a bias current than that required in a conventional output buffer is used. Therefore, the output buffer circuit can reduce power consumption. In the output buffer circuit with a compensation capacitive load, an input part has two input terminal receiving differential input voltage signals, and an output part increases a gain of the differential input voltages. A current source biases the output part, and a slew rate increasing part is connected to the output part and the compensation capacitive load. The slew rate increasing part includes a switching element to increase a slew rate of the output buffer circuit.