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. 09, 2015
Filed:
Jan. 10, 2014
Ixys Corporation, Milpitas, CA (US);
Leonid A. Neyman, Sunnyvale, CA (US);
IXYS Corporation, Milpitas, CA (US);
Abstract
In a steady state operation mode, a charging circuit of a non-isolated AC-to-DC converter decouples an output voltage Vnode from a Vnode when the rectifier output signal Von the Vnode is greater than a first predetermined voltage Vand, 2) supplies a charging current from the Vnode and onto the Vnode when Vis less than Vprovided that an output voltage Von the Vnode is less than a second predetermined voltage Vand provided that Vis greater than V. In an initial power up operation mode, the maximum limit value of the charging current is smaller than it is during steady state operation. Due to the reduced charging currents employed during initial power up operation, less noise is injected back to the AC source and EMI filters are not required between the rectifier of the converter and the AC source.