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:
Jan. 04, 2011
Filed:
Jul. 27, 2006
Luca Crippa, 20040 Busnago, IT;
Miriam Sangalli, 20061 Carugate, IT;
Giancarlo Ragone, 89047 Roccella Jonica, IT;
Rino Micheloni, 22078 Turate, IT;
Luca Crippa, 20040 Busnago, IT;
Miriam Sangalli, 20061 Carugate, IT;
Giancarlo Ragone, 89047 Roccella Jonica, IT;
Rino Micheloni, 22078 Turate, IT;
Other;
Abstract
A multistage circuit for regulating the charge voltage or the discharge current of a capacitance of an integrated device at a certain charge-pump generated boosted voltage is implemented without integrating high voltage transistor structures having a type of conductivity corresponding to the same sign of the boosted voltage (high-side transistors). The multistage circuit current includes at least a first stage, and an output stage in cascade to the first stage and coupled to the capacitance. The first stage is supplied at an unboosted power supply voltage of the integrated device, and the output stage is supplied at an unregulated charge-pump generated boosted voltage. The first stage includes a transistor having a type of conductivity corresponding to an opposite sign of the boosted voltage and of the power supply voltage. The drain of the output stage transistor is coupled to the boosted voltage either through a resistive pull-up or a voltage limiter.