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:
Jul. 22, 2003
Filed:
May. 17, 2001
Torsten Gogolla, Frastanz, AT;
Hilti Aktingesellschaft, Schaan, LI;
Abstract
The invention is directed to an arrangement and a method for generating high voltage from a low-voltage supply source using a charge reservoir chargeable and rechargeable to the desired high voltage or higher via a charge pump. A first switching device regulates the supply of electric charge from the precharged charge reservoir to a separate storage capacitor. As a result, a high voltage signal that is extensively noise-free is available during certain operating phases, such as a measurement process. A second switching device ensures a regulated discharge from the storage capacitor when the capacitor is overcharged, for example, for the readjustment of the high voltage to be generated. A capacitive voltage divider, which reduces the high voltage without losses, is provided to determine the actual value of the high voltage. At very small currents, the desired high voltage can be maintained by using the capacitive voltage divider for a substantially longer time than by using an ohmic voltage divider.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile