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:
Feb. 04, 2003
Filed:
Jan. 11, 2002
George T. Ottinger, Allen, TX (US);
John Randall Principe, Rowlett, TX (US);
David B. Rosenbluth, Richardson, TX (US);
Marco Antonio Davila, Jr., Tucson, AZ (US);
Other;
Abstract
An apparatus for controlling start up of supply voltages received from a power supply responding to control by a feedback signal includes: (a) first error amplifiers receiving a supply voltage at a first terminal, receiving a reference voltage at a second terminal and providing a first error signal to a switch indicating difference between the signals at the terminals; and (b) second error amplifiers having a first node coupled with the switch and for receiving the supply voltage and a second node receiving a reference voltage; the first node receives a sum of the first error signal and the supply voltage when the switch is in a first orientation, and receives the supply voltage when the switch is in a second orientation; each second error amplifier provides a second error signal indicating a difference between signals received at the nodes that is the feedback signal for controlling the power supply.