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:
Sep. 10, 2002
Filed:
Jan. 08, 2002
Dirk Killat, Kirchheim, DE;
Dialog Semiconductor GmbH, Kirchheim-Nabern, DE;
Abstract
An apparatus and a method for controlling a converter of electronic power supply energy embodied for example as a boost converter or as a boost converter with a power factor correction (PFC) or being used as a DC to DC converter that is running in a discontinuous mode and which is using an equation to calculate the point of time of the zero current state of the storage inductor based on the ON time of the shunt switch and the voltages at the source and the load side. This method achieves a maximum power transfer by recharging of the storage inductor right after the zero current state is reached. The accuracy of the voltage measurement is increased by calibration of the source and load voltage dividers. Minimizing distortion and harmonics is achieved by a fine adjustment of the energy transfer through fine-tuning of the pulse width of the switch overcoming the limitations of discrete time steps in clocked digital systems by toggling between neighboring ON time values of the switch.