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:
Jan. 30, 2018
Filed:
May. 04, 2016
Analog Devices, Inc., Norwood, MA (US);
Michael Daly, San Jose, CA (US);
Gabriele Bernardinis, Los Gatos, CA (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
A soft start-up method is provided comprising: producing an initialization signal on a primary winding side of a transformer; using a comparison of the initialization signal with a signal having a value indicative of a current in the primary winding to control a switch operatively disposed between a voltage source and the primary side; transmitting the initialization signal over a galvanically isolating communication medium from the primary side to a secondary winding side of a transformer; at the secondary winding side, comparing a reference voltage signal with a secondary winding output voltage signal; in response to a match between the reference signal and the secondary winding output voltage signal, transmitting a comparison voltage signal over the galvanically isolating communication medium from the secondary side to the primary side; at the primary side, comparing the initialization signal with the transmitted comparison voltage signal; and in response to a match between the initialization signal the and the comparison voltage signal, using the transmitted comparator voltage signal to control the switch.
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