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:
Apr. 04, 2006
Filed:
Mar. 19, 2004
Giuseppe Bernacchia, Padova, IT;
Giorgio Chiozzi, Padvoa, IT;
Maurizio Galvano, Padova, IT;
Infineon Technologies AG, Munich, DE;
Abstract
The invention relates to a voltage regulator having an output terminal (AK) for the provision of an output voltage and connection of a load, an output capacitor () connected to the output terminal and having an equivalent series resistance (ESR), a converter unit () having supply voltage terminals for the application of a supply voltage (Vcc), an output coupled to the output terminal (AK), a feedback signal input for feeding in a feedback signal (Vfb) dependent on the output voltage, a reference signal input for feeding in a reference signal (Vref), and a comparator unit (TA), which provides a differential signal (Iea) from the reference signal (Vref) and the feedback signal (Vfb), in which case the converter unit () provides an output current (Iout), the mean value of which is proportional to the differential signal (Iea), the proportionality factor between this difference and the output current (Iout) being set by means of a control signal at a control input of the converter unit () in such a way that it is proportional to the reciprocal of the equivalent series resistance (ESR) of the output capacitor.