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. 11, 2013
Filed:
Apr. 01, 2008
Riad Wahby, Austin, TX (US);
Michael J. Mills, Austin, TX (US);
Jeffrey A. Whaley, Austin, TX (US);
Marius Goldenberg, Austin, TX (US);
Ion C. Tesu, Austin, TX (US);
Riad Wahby, Austin, TX (US);
Michael J. Mills, Austin, TX (US);
Jeffrey A. Whaley, Austin, TX (US);
Marius Goldenberg, Austin, TX (US);
Ion C. Tesu, Austin, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
One embodiment of a power supply apparatus includes a first switcher coupled to provide VOUT from a VSUPPLY. A cascaded second switcher is coupled to provide a subscriber line interface circuit target VBAT from VOUT, wherein the first switcher is placed in one of an active mode and an inactive mode in accordance with a function of VSUPPLY and VBAT, wherein in the active mode wherein in the inactive mode VOUT≈VSUPPLY.