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:
Jun. 10, 2008
Filed:
Jul. 24, 2003
Joshua Patchornik, Ramat Gan, IL;
Joshua Patchornik, Ramat Gan, IL;
Lightech Electronics Industries, Ltd., LOD, IL;
Abstract
A startup circuit () for a power supply (), has an input () for connecting to a source of high voltage thereto, and an output rail () for feeding rectified voltage to the power supply. A first energy storage device () is coupled to the output rail for storing energy when voltage is first applied to the input, and a second energy storage device () is coupled to an output of the power supply for storing energy when a voltage appearing at the output of the power supply reaches substantially steady state. A switching circuit () is coupled to the first energy storage device and the second energy storage device and is responsive to the first energy storage device having sufficient energy for transferring the energy to the second energy storage device and disconnecting the first energy storage device from the output rail.