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:
Sep. 25, 2012
Filed:
Apr. 01, 2009
Applicants:
Yuequan HU, Morrisville, NC (US);
Milan M. Jovanović, Cary, NC (US);
Inventors:
Yuequan Hu, Morrisville, NC (US);
Milan M. Jovanović, Cary, NC (US);
Assignee:
Delta Electronics, Inc., Taipei, TW;
Primary Examiner:
Int. Cl.
CPC ...
H03B 41/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The current invention provides a power supply that includes an igniter that generates an ignition voltage for igniting a DC lamp; an auxiliary power stage that outputs an auxiliary voltage for sustaining sufficient current in the DC lamp after the DC lamp is ignited; a voltage conversion stage coupled to the auxiliary power stage and generating a voltage at a level that is higher than the auxiliary voltage; and a switch that couples the auxiliary voltage to the DC lamp and the voltage conversion stage for a predefined period of time.