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:
May. 16, 2017
Filed:
May. 27, 2014
Infineon Technologies Austria Ag, Villach, AT;
Derek Bernardon, Villach, AT;
Infineon Technologies Austria AG, Villach, AT;
Abstract
In accordance with an embodiment, a method of operating a power supply includes measuring an output signal of the power supply, determining a control voltage based on the measured output signal, and determining whether a supply voltage of a voltage follower circuit is greater than a first threshold. When the supply voltage of the voltage follower circuit is greater than the first threshold, the control voltage is applied to an input of the voltage follower circuit and an output of the voltage follower circuit is applied to a control node of an output transistor in a first mode. When the supply voltage of the voltage follower circuit is not greater than the first threshold, the voltage follower circuit is shut down and the control voltage is applied to the control node of the output transistor in a second mode.