#ST ERICSSON SA [CH]

State of charge estimation based on battery discharge model

It is proposed a method for estimating a charge level for a battery comprising the step of using a coulomb counter for estimating the State of Charge of the battery at a given time on the basis of the…

DRIVE·Aug 20·2 min read

G01R31/367 ST ERICSSON SA [CH]

Connecting auxiliary battery charger IC to mobile chipset

A method and apparatus for connecting an auxiliary charger IC (52) to a mobile platform chipset (52) so that charger connection (64) wakes-up the power management unit (50), operating system or chargi…

DRIVE·Aug 6·2 min read

G06F1/263 ST ERICSSON SA [CH]

A method of and receiver for communication during wireless power transmission

In a wireless power charger a receiver (6) is inductively coupled to a transmitter (1) to receive power for charging an accumulator in a device (11). The receiver (6) communicates charging data to the…

DRIVE·Mar 19·2 min read

H02J50/10 ST ERICSSON SA [CH]

Analog-to-digital conversion device

The present disclosure relates to an electronic analog-to-digital conversion device (100) which comprises: - an analog-to-digital conversion block (101) having a first input (1) for receiving a voltag…

DRIVE·Jan 29·2 min read

H03M1/12 ST ERICSSON SA [CH]

Sequential estimation in a real-time positioning or navigation system using historical states

A sequential estimation method for real-time positioning or navigation systems is performed by, at each iteration: propagating a first state estimate into a state prediction, and then forming a second…

DRIVE·Jan 1·2 min read

G01C21/165 ST ERICSSON SA [CH]

Secure element power management system

There is described a method of, and a circuit for supplying power to an integrated circuit card, ICC, of a wireless device comprising a first power supply unit. The circuit comprises a power pin conne…

DRIVE·Dec 25·1 min read

G06K19/0702 ST ERICSSON SA [CH]

Multiple supply DVFS

The invention concerns a system for delivering a voltage to at least one power domain (2.11-2.nz) comprising at least one component, each power domain functioning according to at least two operating p…

DRIVE·May 15·2 min read

G06F1/263 ST ERICSSON SA [CH]

Integrated circuit adapted to perform power path control in a mobile equipment

Some embodiments of the invention concern an integrated circuit adapted to perform power path control in a mobile equipment, including connections to external equipment (10,70,80,90), one or more furt…

DRIVE·May 15·1 min read

H02J7/00 ST ERICSSON SA [CH]

Method and electrical interface circuit enabling multiplexing

An electrical interface circuit is disclosed. The circuit comprises a microphone circuit (100); a battery charger circuit (200); and an electrical connector (300) for connecting said electrical interf…

DRIVE·Aug 15·2 min read

H02J7/70 ST ERICSSON SA [CH]

Circuit protection

An apparatus (100) for protecting a circuit (200) from an input voltage comprises a switchable element (10) arranged to couple the input voltage (V IN ) to the circuit (200) in response to a first con…

DRIVE·Jun 6·2 min read

H02H3/20 ST ERICSSON SA [CH]

Power management circuit for a portable electronic device including USB functionality and method for doing the same

A Power Management circuit for a portable electronic device comprising an internal battery (200) to be charged either through a first interface or through a AC-DC conversion circuit. The circuit compr…

DRIVE·Feb 29·2 min read

G06F1/263 ST ERICSSON SA [CH]

Process for auto-testing a fully discharged battery, such as double-layer capacitor battery, and circuit for doing the same

A process for performing an auto-test of a fully discharged battery (130) of an electronic appliance including a battery charger (160), said process involving the steps of : - performing (210) an init…

DRIVE·Feb 29·1 min read

G01R19/16542 ST ERICSSON SA [CH]

Contrôl de la tension d'un convertisseur CC/CC

Power system comprising at least one power source (30) and a DC/DC converter (31) with an input (IN) coupled to the power source, and an output (OUT) which may be coupled to a load (39, 40), for allow…

DRIVE·Aug 24·1 min read

H02J7/35 ST ERICSSON SA [CH]