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:
Jun. 20, 2006
Filed:
Nov. 19, 2003
Robert Callaghan Taft, Munich, DE;
Maria Rosaria Tursi, Munich, DE;
Robert Callaghan Taft, Munich, DE;
Maria Rosaria Tursi, Munich, DE;
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
A signal transmission gate includes a switch such as a transistor. The switch includes a gate terminal adapted to receive a control voltage, and a source terminal and a drain terminal. One of the source and drain terminals is adapted to receive an input signal, and the output signal is provided on the other terminal. A constant-voltage boosting circuit generates the control voltage such that it has a substantially constant value above a voltage of the input signal. In one embodiment, the constant-voltage boosting circuit is coupled between the gate terminal and the terminal that receives the input voltage, and generates a substantially constant voltage difference. In one implementation, a component is employed that exhibits a characteristic voltage behavior, such as a diode, for generating the substantially constant voltage difference.