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:
Jun. 21, 2016
Filed:
Jul. 08, 2015
Dialog Semiconductor Gmbh, Kirchheim/Teck-Nabern, DE;
Dialog Semiconductor B.v.;
Ambreesh Bhattad, Swindon, GB;
Ludmil Nikolov, Chippenham, GB;
Marinus Wilhelmus Kruiskamp, 's-Hertogenbosch, NL;
Dialog Semiconductor GmbH, Kirchheim/Teck-Nabern, DE;
Dialog Semiconductor B. V., 's-Hertogenbosch, NL;
Abstract
Circuits and methods to maintain a resistive voltage divider ratio during start-up of an electronic circuit comprising a feed-forward capacitor across a feedback resistor using a dynamic start-up circuit are disclosed as e.g. a LDO or an amplifier. In a preferred embodiment of the disclosure is applied to an LDO. Modification of the resistive voltage divider ratio caused by the feed-forward capacitor during start-up is prevented while the voltage level of a voltage access point of the voltage divider on the feed-forward capacitor is maintained. A start-up circuit comprises a start-up capacitor and a start-up comparator.