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:
Nov. 12, 2013
Filed:
Oct. 13, 2008
Ralf Schröder Gen. Berghegger, Glandorf, DE;
Rüdiger Malsch, Bad Schandau, DE;
Ralf Schröder gen. Berghegger, Glandorf, DE;
Rüdiger Malsch, Bad Schandau, DE;
Flextronics AP, LLC, Broomfield, CO (US);
Abstract
The invention under consideration refers to a controller for a primary-side regulated control power supply unit for the regulation of the output of the primary regulated control power supply unit. The invention also concerns a method for the operation of a control power supply unit of the generic type and a pertinent control power supply unit. The controller comprises a control output (B), which can be connected with the control input of a primary-side switch (Q) of the control power supply unit; a voltage measurement input (U), which can be connected with a primary-side auxiliary winding (L) of a transformer () for the sensing of an auxiliary voltage, which is induced as a function of the secondary-side output voltage; a sample-and-hold element (SuH, SuH) for the sensing of the auxiliary voltage; and an error amplifier () for a comparison of the sensed auxiliary voltage with a reference value (Vref) and for the amplification of the deviation between the sensed auxiliary voltage and the reference value. The controller (IC) also has a return branch for the return of the output signal of the error amplifier () to the voltage measurement input (U).