公开(公告)号：US20230081414A1

公开(公告)日：2023-03-16

申请号：US17894548

申请日：2022-08-24

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandro FRANCESCHIN ,  Andrea MAZZANTI ,  Andrea PALLOTTA

IPC: H03B5/12

Abstract: A voltage controlled oscillator includes a series resonant circuit having a resonance frequency and an active voltage driving device coupled to the series resonant circuit. The active voltage driving device provides a driving voltage and has an output negative resistance in an operative voltage range at the resonance frequency. The active voltage driving device includes a cross-coupled differential pair having voltage supply terminals providing the driving voltage. The series resonant circuit is coupled between the voltage supply terminals of the cross-coupled differential pair.

公开(公告)号：US20180278207A1

公开(公告)日：2018-09-27

申请号：US15921427

申请日：2018-03-14

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Andrea PALLOTTA

IPC: H02S50/10 ,  H02J3/38 ,  G01R19/165

CPC classification number: H02S50/10 ,  G01R19/16519 ,  G01R19/16528 ,  H02J1/00 ,  H02J3/385 ,  H02J13/0003

Abstract: A photovoltaic power generation plant includes a plurality of photovoltaic generators cooperative in producing photovoltaic power. Coupled with the photovoltaic generators in the plurality of photovoltaic generators are respective sensor devices, the sensor devices including sensor circuits of the individual current-to-voltage characteristics of the photovoltaic generators. The sensor circuits in the sensor devices can be activated to sense the individual current-to-voltage characteristics of the photovoltaic generators, with the individual current-to-voltage characteristic being indicative of the functionality of each photovoltaic generator.