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:
Oct. 28, 2008
Filed:
Jul. 10, 2006
Min Sheng Kao, Hsinchu, TW;
Zee Shian Jen, Hsinchu, TW;
Jen Ming Wu, Hsinchu, TW;
Ching Te Chiu, Hsinchu, TW;
Shuo Hung Hsu, Hsinchu, TW;
Min Sheng Kao, Hsinchu, TW;
Zee Shian Jen, Hsinchu, TW;
Jen Ming Wu, Hsinchu, TW;
Ching Te Chiu, Hsinchu, TW;
Shuo Hung Hsu, Hsinchu, TW;
National Tsing Hua University, Hsinchu, TW;
Abstract
A transmission circuit includes a first-stage circuit, a second-stage circuit, a negative active feedback circuit and a current buffer. The first-stage circuit includes at least an active MOS device for receiving an input voltage and issuing a first voltage signal. The active MOS device has an inductive feature during operation in a high frequency mode to compensate the first voltage signal. In response to the first voltage signal, the second-stage circuit outputs a first output voltage. The negative active feedback circuit may enhance the bandwidth of the first output voltage. The current buffer may enhance the gain value of the first output voltage. A second voltage signal is issued from the first-stage circuit and compensated by the first output voltage transmitted from the current buffer to enhance the bandwidth and the gain value thereof. In response to the compensated second voltage signal, the second-stage circuit outputs a second output voltage.