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:
Apr. 03, 2007
Filed:
Jan. 03, 2006
Mohammad A. Al-shyoukh, Richardson, TX (US);
Raul A. Perez, Dallas, TX (US);
Mohammad A. Al-Shyoukh, Richardson, TX (US);
Raul A. Perez, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
The low AC impedance input stage circuit for fast startup applications includes: a first transistor coupled between a first input node and a first output node; a second transistor coupled between a second input node and a second output node, and having a control node coupled to a control node of the first transistor; a third transistor coupled to the first input node and having a control node coupled to the control node of the first transistor; a fourth transistor coupled to the second input node and having a control node coupled to the control node of the third transistor; a first blocking device coupled between the third transistor and a first current source; a second blocking device coupled between the fourth transistor and the first current source; and a bias device coupled between the first current source and the control node of the first transistor.