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. 27, 2009
Filed:
Jan. 31, 2007
Theodore D. Rees, Mountain View, CA (US);
Anatoly Aranovsky, Los Gatos, CA (US);
Theodore D. Rees, Mountain View, CA (US);
Anatoly Aranovsky, Los Gatos, CA (US);
Intersil Americas Inc., Milpitas, CA (US);
Abstract
Embodiments of the present invention are directed to current driver circuits and methods for driving a load. The current driver circuit includes a first transistor (Q) and a second transistor (Q) each having a gate, a drain and a source. The drain of the second transistor (Q) forms the output of the current driver circuit. The first and second transistors (Q) and (Q) function as a current mirror when the gates of the first and second transistors (Q) and (Q) are selectively connected together. The current driver circuit also includes a current source, a load mimic circuit, and a control loop (e.g., including an op-amp), which are configured to cause the voltage at the drain of the first transistor (Q) to substantially equal the voltage at the output of the current driver circuit.