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:
May. 12, 2009
Filed:
May. 19, 2006
Giancarlo Ragone, Roccella Jonica, IT;
Miriam Sangalli, Carugate, IT;
Luca Crippa, Busnago, IT;
Rino Micheloni, Turate, IT;
Giancarlo Ragone, Roccella Jonica, IT;
Miriam Sangalli, Carugate, IT;
Luca Crippa, Busnago, IT;
Rino Micheloni, Turate, IT;
Other;
Abstract
Voltage-boosting device having a supply input receiving a supply voltage, and a high-voltage output. The device is formed by a plurality of charge-pump stages series-connected between the supply input and the high-voltage output. Each charge-pump stage has a respective enabling input receiving an enabling signal. A control circuit formed by a plurality of comparators is connected to the high-voltage output and generates the enabling signals on the basis of the comparison between the voltage on the high-voltage output and a plurality of reference voltages, one for each comparator. The charge-pump stages are grouped into sets of stages, and the stages belonging to a same set receive a same enabling signal; thus, as many comparators as there are sets of stages are present.