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:
Aug. 20, 2002
Filed:
Jul. 05, 2001
Ferdinand Jacob Sluijs, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A DC/DC converter ( ), comprising inductive energy storage means ( ), switching means (S -S ) and control means ( ), wherein said control means ( ) are arranged for selectively operating said switching means (S -S ) for providing electrical energy from said energy storage means ( ) to an output (A; B; C; D) of said DC/DC converter ( ) in both a Pulse Width Modulation (PWM) mode and a Pulse Frequency Modulation (PFM) mode switching cycle. The control means ( ) are arranged for controlling multiple outputs (A; B; C; D) of said DC/DC convertor ( ) by providing a sequence (T) of a number of separate switching cycles for each output (A; B; C; D), and for establishing a main output among said multiple outputs (A; B; C; D) requiring the highest amount of energy, wherein said main output in PWM mode determines the total amount of energy to be supplied in a sequence (T) and the number of switching cycles of an output in PWM mode is determined by part of the total amount of energy to be supplied at said output.