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. 06, 2015
Filed:
Jun. 11, 2014
Winbond Electronics Corp., Taichung, TW;
Hiroki Murakami, Saitama, JP;
Kenichi Arakawa, Chiba, JP;
Winbond Electronics Corp., Taichung, TW;
Abstract
The invention provides a clamp voltage generating circuit capable of generating a correct clamp voltage. The clamp voltage generating circuit includes an emulate transistor, having a drain coupled to a power source VDD, a source coupled to a node, and a gate coupled to the clamp voltage; a current setting circuit, connected between the node and ground, for setting a current flowing from the node to the ground; a regulator, inputting a feedback voltage from the node and a reference voltage, and outputting a voltage VCLMP. The current setting circuit duplicates a current of a bit line, so that the emulate transistor is similar to a charge transfer transistor.