Angeli

Alessandro Angeli, Munich DE

Patent application number	Description	Published
20110279155	Slew rate PWM controlled charge pump for limited in-rush current switch driving - Circuits and methods to limit an in-rush current of a load circuit such as a processor are disclosed. A charge pump is used as driver for switches with pulse modulation width (PWM) control on the duty cycle of a clock. A clock generator generates a ramp signal with variable slope and a reference voltage. The slope of the ramp signal is dependent on the in-rush current of the switch. No dedicated slew rate driver or an external capacitor is required. The main building blocks are: a charge pump used as driver connected to single supply domain, one external (or internal) switch device, a single capacitive feedback between the switch device and the PWM control, and a PWM control comprising a fix frequency voltage triangular pulse generator with variable slope proportional to the in-rush current measurement.	11-17-2011

Patent application number	Description	Published
20100088980	SEISMIC ISOLATOR AND METHOD TO PRODUCE SAID SEISMIC ISOLATOR - A seismic isolator includes at least two layers disposed one on top of the other and made of an elastomer material and at least a reinforcement element in the form of a sheet, disposed between the layers and made of fibers.	04-15-2010

Patent application number	Description	Published
20110301346	PROCESS FOR THE PURIFICATION OF AMOROLFINE HYDROCHLORIDE - The present invention relates to a process for the purification of amorolfine hydrochloride by means of a reversed-phase preparative high performances liquid chromatography (prep-HPLC) said method starting from a crude Amorolfine hydrochloride having purity higher than 90% and containing Bepromoline hydrochloride <5% and Fenpropimorf <3%. The process involves the use of a mobile phase comprising water and an organic solvent under isocratic conditions.	12-08-2011