US 10,312,698 B2Granted

Charger device for battery supported power supplies

AssigneeKoninklijke Philips N.V.

InventorBernhard Wagner

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Abstract

A charger device comprises a sensor which is configured to measure a differential current as a difference between a first current through a first battery portion of a battery and a second current through a second battery portion of the battery. The sensor is configured to provide a current difference signal based on the measured differential current. The charger device further comprises a compensator configured to calculate a first current setpoint used for the first battery portion and a second current setpoint used for the second battery portion based on the current difference signal and a battery current setpoint. The charger device also comprises a controller configured to control charging and/or discharging of the first battery portion based on the first current setpoint and of the second battery portion based on the second current setpoint.

Claims5

Dependent claims

A power supply system, comprising:

a battery comprising a first battery portion and a second battery portion;
and
a charger device comprising a sensor configured to measure a differential current as a difference between a first current through the first battery portion and a second current through the second battery portion and to provide a current difference signal based on the measured differential current, wherein the first battery portion and the second battery portion are centrally earthed;
the charger device further comprising a compensator configured to calculate a first current setpoint used for the first battery portion and a second current setpoint used for the second battery portion based on the current difference signal and a battery current setpoint;
the charger device further comprising a controller configured to control charging and/or discharging of the first battery portion based on the first current setpoint and of the second battery portion based on the second current setpoint, wherein the controller comprises a first portion charging device configured to control charging and/or discharging of the first battery portion based on the first current setpoint, and a second portion charging device configured to control charging and/or discharging of the second battery portion based on the second current setpoint;
wherein the charger device is configured to control charging and/or discharging of the battery.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/897,327Filed 15 Feb 2018 · division
Priority: EP 1515606223 Feb 2015
Published: US 2018/0191174 A15 Jul 2018
Granted: 4 Jun 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H02J 7/56
For charge balancing, e.g. equalisation of charge between batteries: active balancing, e.g. using capacitor-based, inductor-based or DC-DC converters
H02J 7/80
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: including monitoring or indicating arrangements
H02J 7/50
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: acting upon multiple batteries simultaneously or…
H02J 7/54
For charge balancing, e.g. equalisation of charge between batteries: passive balancing, e.g. using resistors or parallel MOSFETs

Family

PCT/EP2016/053212Parent of this division · filed 16 Feb 2016
US 2018/0191174 A1Pre-grant publication · published 5 Jul 2018
Application15/520,143Parent of this division
US 10,454,284 B2Related patent
US 2017/0346310 A1Published application
US 10,312,698 B2This patent

From the US filing history. Foreign family members aren’t listed.

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