EP 4275259 A1 20231115 - SOLAR-POWERED DEVICE EMPLOYING A POWER MANAGEMENT SYSTEM AND METHOD
Title (en)
SOLAR-POWERED DEVICE EMPLOYING A POWER MANAGEMENT SYSTEM AND METHOD
Title (de)
SOLARBETRIEBENE VORRICHTUNG MIT EINEM ENERGIEVERWALTUNGSSYSTEM UND VERFAHREN
Title (fr)
DISPOSITIF À ÉNERGIE SOLAIRE UTILISANT UN SYSTÈME ET UN PROCÉDÉ DE GESTION D'ÉNERGIE
Publication
Application
Priority
- EP 21164863 A 20210325
- EP 2022057789 W 20220324
Abstract (en)
[origin: EP4064507A1] A solar-powered device (1) employing a power management system (50) and method is disclosed. The device (1) comprises: an array (10) of one or more solar cells (12) for converting ambient light into a solar source voltage (Vsrc); an energy storage device, such as a secondary battery (20); a load (30) that is powered when the device (1) operates; and a power management system (50) for receiving and monitoring the solar source voltage (Vsrc) to harvest energy therefrom, the power management system (50) generating a load voltage (Vload) to power the load (30) and a storage voltage (Vbat) to charge the energy storage device (20). While the device (1) operates and when the solar source voltage (Vsrc) is above a first threshold voltage (Vth1), the power management system (50) is configured to operate in an active supply (A) mode in which the system (50) continually monitors the solar source voltage (Vsrc), and while the device (1) operates and when the solar source voltage (Vsrc) is below the first threshold voltage (Vth1), the power management system (50) is configured to operate in at least one low-power (LS1, LS2, DS) mode in which the system (50) does not monitor the solar source voltage (Vsrc), only monitors the solar source voltage (Vsrc) when one or more conditions are met, or monitors the solar source voltage (Vsrc) at a reduced rate in comparison to the continual monitoring in the active supply mode.
IPC 8 full level
H02J 7/00 (2006.01); G04B 99/00 (2006.01); G04C 10/00 (2006.01); H02J 7/35 (2006.01)
CPC (source: EP)
G04C 10/02 (2013.01); G04G 19/08 (2013.01); G04G 19/10 (2013.01); H02J 7/0047 (2013.01); H02J 7/0068 (2013.01); H02J 7/35 (2013.01)
Citation (search report)
See references of WO 2022200509A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4064507 A1 20220928; EP 4275259 A1 20231115; WO 2022200509 A1 20220929
DOCDB simple family (application)
EP 21164863 A 20210325; EP 2022057789 W 20220324; EP 22717602 A 20220324