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:
May. 08, 2007
Filed:
Jul. 20, 2005
Yat Hei Lam, New Territories, HK;
Wing Hung Ki, Kowloon, HK;
Chi Ying Tsui, Kowloon, HK;
The Hong Kong University of Science and Technology, Kowloon, HK;
Abstract
A voltage mirror circuit using a symmetrically matched transistor structure is provided. The circuit includes an input reference voltage node on a first side of said circuit and an output mirror voltage node on a second side of said circuit, and a plurality of matched transistor pairs wherein the transistors in each pair have the same aspect ratio and wherein one transistor in each pair is provided on the first side of the circuit and the second transistor in each pair is provided on the second side of said circuit. The transistor pairs may include pairs of NMOS transistors and pairs of PMOS transistors or pairs of bipolar npn transistors and pairs of bipolar pnp transistors.