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:
Dec. 11, 2018
Filed:
Mar. 03, 2011
Magnus Karlsson, Oskarshamn, SE;
Anders Kullman, Kalmar, SE;
Fredrik Wahledow, Färjestaden, SE;
Henrik Borgengren, Kalmar, SE;
Jonas Malmberg, Färjestaden, SE;
Oscar Persson, Kalmar, SE;
Magnus Karlsson, Oskarshamn, SE;
Anders Kullman, Kalmar, SE;
Fredrik Wahledow, Färjestaden, SE;
Henrik Borgengren, Kalmar, SE;
Jonas Malmberg, Färjestaden, SE;
Oscar Persson, Kalmar, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A control circuit for a switched mode power supply (SMPS) has an input voltage reference voltage generator arranged to receive a signal indicative of an input voltage of the SMPS and is arranged to generate a reference signal directly proportional to the input voltage. An error signal generator of the control circuit is arranged to receive a signal indicative of an output voltage of the SMPS and arranged to generate an error signal based on the reference signal generated by the input reference voltage generator and based on the output voltage of the SMPS. A duty cycle control signal generator of the control circuit is arranged to generate a control signal, to control the duty cycle of the SMPS, in dependence upon the error signal.