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. 13, 1999
Filed:
Mar. 26, 1997
Garold Joseph Goodale, Jr, Lakewood, CO (US);
Herbert Wallace Behlow, Jr, Lawrence, KS (US);
Other;
Abstract
A method for improving electrical and light producing efficiency in two terminal, direct current, low voltage incandescent lamp dimming wherein a small inductance in series with the power source, lamp, and two terminal controller boosts the voltage supplied to the timing circuitry. Accordingly, the voltage level of the controlling signal applied to the insulated gate of the field effect transistor is increased as well, improving electrical efficiency and allowing for efficient use with a wide range of supply voltage, from 18 volts or more down to as low as one volt. Also a technique is provided whereby, even though using only two terminals, lamp intensity is regulated over a wide range of supply voltage excursions, improving light producing efficiency in incandescent lamps. Also, this same technique proportionally reduces current demand when the supply voltage exceeds that of the lamp, affording increased energy extraction efficiency from batteries.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile