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. 08, 1997
Filed:
Sep. 30, 1994
Thai Minh Nguyen, Santa Clara, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
A driver circuit for a laser diode includes a prebiasing amplifier for providing a prebiasing current, a second amplifier for amplifying an input signal to provide an output current signal, and a third amplifier for amplifying the sum of the current output signal and the prebiasing current. In one embodiment, the third amplifier includes first and second current mirrors. In another embodiment, a capacitor couples one output of the second amplifier to an inverting input of the third amplifier, so as to increase the effective gain of the third amplifier.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile