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:
Jul. 20, 2010
Filed:
Dec. 04, 2008
Ping-lin Yang, Tianzhong Township, TW;
Hsin-hsin Ko, Hsin-Chu, TW;
Chung-cheng Chou, Hsin-Chu, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Abstract
A circuit includes a first power supply node at a first power supply voltage; a gated-node; and a first control device coupled between the first power supply node and the gated-node. The first control device is configured to pass the first power supply voltage to the gated-node or to disconnect the gated-node from the first power supply voltage. A second control device is coupled between the first power supply node and the gated-node. The second control device is configured to pass a gated-voltage to the gated-node or disconnect the gated-node from the gated-voltage. A voltage-drop device is coupled between the first power supply node and the gated-node, wherein the voltage-drop device is serially connected with the second control device. A negative-feedback current source is connected in parallel with the voltage-drop device. The negative-feedback current source is configured to provide a current tracking a variation of the gated-voltage at the gated-node.