US Pat. No. 9,198,239

DRIVER SYSTEM FOR DRIVING AT LEAST ONE LED

EldoLAB Holding B.V., Ei...

1. A driver system for driving at least one LED, the driver system comprising:
a LED driver comprising a current source connected to the at least one LED for providing an LED drive current to the at least
one LED, and a control module for controlling a flow of the LED drive current through the at least one LED; and

a power supply having a power output terminal connected to a power input terminal of the current source for providing electrical
power to the current source;

wherein the control module comprises a control signal output connected to a control signal input of the power supply for controlling
an operation of the power supply, and

wherein the control module is arranged to anticipate a load change of the current source by determining the control signal
to control the power supply during a delay between a providing of the setpoint input data to the control module and the load
change resulting from the setpoint data.

US Pat. No. 9,125,266

LED DRIVER OPERATING IN BOUNDARY CONDITION MODE

ELDOLAB HOLDING B.V., So...

1. An LED driver for providing a current to an LED fixture comprising at least one LED, the LED driver comprising:
a switched mode power supply (SMPS) for providing the current to the LED fixture, the SMPS comprising a first, high voltage
terminal and a second, low voltage terminal for, in use, receiving the LED fixture; the SMPS comprising a first capacitance
for, in use, bridging the LED fixture, and a switch, connected at the second terminal, downstream of the LED fixture;

a control unit for controlling the switch of the SMPS based on a feedback signal received at an input terminal of the control
unit;

a current sensing circuit arranged to provide the feedback signal to the input terminal of the control unit; the current sensing
circuit being arranged to provide the feedback signal to the input terminal when the switch is open; the current sensing circuit
further comprising a current sensor arranged to provide, when the switch is closed, the feedback signal representing a level
of the current supplied to the LED fixture, by connecting the current sensor to the input terminal via a further switch, the
further switch being controlled by the control unit.

US Pat. No. 9,351,365

CONTROL UNIT FOR LED ASSEMBLY AND LIGHTING SYSTEM

ELDOLAB HOLDING B.V., So...

1. A lighting system comprising:
a LED assembly that comprises a plurality of LED units, said LED units being serial connected;
a switched mode power supply for powering the LED assembly;
a control unit for controlling the LED assembly the control unit being arranged to:
receive an input signal representing a desired output characteristic of the LED assembly,
determine a plurality of duty cycles for the respective plurality of LED units associated with a nominal current level of
the switched mode power supply, for providing the desired output characteristic,

determine the largest of the plurality of duty cycles for respective LED units,
determine a current level that is reduced relative to the nominal current level based on at least the largest of the duty
cycles,

adjust the plurality of duty cycles for respective LED units based on the reduced current level or the largest of the duty
cycles, and

provide output data for the LED assembly and the switched mode power supply based on the adjusted plurality of duty cycles
and the reduced current level,

and wherein the LED assembly further comprises a capacitor connectable in parallel to the plurality of LED units by operating
a switch connected in series with the capacitor and wherein the control unit is arranged to control the switch based on at
least one of the reduced current and the input signal.

US Pat. No. 9,301,348

LED DRIVER FOR POWERING AN LED UNIT FROM A ELECTRONIC TRANSFORMER

ELDOLAB HOLDING B.V., So...

1. An LED driver comprising:
a power converter for powering an LED unit;
a control unit for controlling the power converter;
the power converter comprising:
an input terminal for receiving a rectified AC supply voltage, and
an output terminal for supplying a current to the LED unit,
the control unit comprising
an input for receiving a supply signal representative of the rectified AC supply voltage received by the input terminal of
the power converter, and

an output for providing a control signal to the power converter, whereby
the control unit is arranged to:
determine the control signal for controlling the power converter based on the supply signal, and
control the power converter to supply the current to the LED unit based on the control signal, the current being amplitude
modulated in phase or in synchronism with the rectified AC supply voltage,

wherein a peak value of the current is, in use, varied according to the amplitude of the rectified AC supply voltage,
whereby the variation is applied gradually by only adjusting a current level during a comparatively small part of a period
of the rectified AC supply voltage per period of the rectified AC supply voltage.

US Pat. No. 9,357,594

LED DRIVER, LIGHTING DEVICE AND LED BASED LIGHTING APPLICATION

EldoLAB Holding B.V., Ei...

1. An LED driver for powering an LED fixture, the LED driver comprising:
a power converter for converting an input power such as a rectified mains supply to an output power for powering the LED fixture;
a control unit arranged to control an output characteristic of the power converter; and
an application terminal connected to the control unit for connecting the control unit to a lighting device; the control unit
being arranged to:

provide a polling signal to the lighting device;
receive, in response to the polling signal, a first control signal for controlling the output characteristic;
wherein the lighting device or part thereof is powered via the application terminal; and
wherein the control unit is arranged to interrupt the power supply to the lighting device in order to provide the polling
signal and receive the first control signal.

US Pat. No. 9,198,257

LIGHTING SYSTEM AND METHOD OF RETRIEVING STATUS INFORMATION OF A LIGHTING SYSTEM

EldoLAB Holding B.V., So...

1. A method of retrieving status information of a lighting system, the lighting system comprising a plurality of LED-based
lighting units arranged as nodes in a linear daisy-chained network, the network having network segments connecting two subsequent
nodes downstream of a controller via an upstream transceiver and a downstream transceiver of the network segment, the method
comprising:
propagating a command signal from the controller to a node of the lighting system by operating the upstream transceivers of
the network segments that are upstream of the node in a transmitting mode and operating each of the downstream transceivers
of the network segments that are upstream of the node in a receiving mode;

propagating a reply signal comprising the status information of the LED unit of the node from the node to the controller by
operating the upstream transceivers of the network segments that are upstream of the node in a receiving mode and operating
each of the downstream transceivers of the network segments upstream of the node in a transmitting mode; and

reversing an operating mode of an upstream transceiver of a network segment from operating in a transmitting mode to operating
in a receiving mode only when the downstream transceiver of the network segment is operating in transmitting mode.

US Pat. No. 9,173,262

CONTROL UNIT FOR A LED ASSEMBLY THAT DETERMINES OUTPUT DATA FOR THE LED ASSEMBLY FROM DUTY CYCLES OF THE LED UNITS IN THE ASSEMBLY

ELDOLAB HOLDING B.V., So...

1. A control unit for an LED assembly comprising a first and second LED unit, said LED units being serial connected, the LED
assembly, in use, being powered by a switched mode power supply, the control unit being arranged to
receive an input signal representing a desired output characteristic of the LED assembly,
determine a power supply current of the switched mode power supply from the received input signal,
determine a first and second duty cycle for the respective first and second LED units from the determined power supply current
and the input signal, the combination of duty cycle and power supply current being set for providing the desired output characteristic,

provide output data for the LED assembly and the switched mode power supply based on the determined first and second duty
cycles and the determined power supply current.

US Pat. No. 9,161,406

LED DRIVER AND LIGHTING APPLICATION FOR WATTAGE CONTROL

ELDOLAB HOLDING B.V., So...

1. An LED driver for powering an LED fixture, the LED driver comprising:
an input terminal for receiving an input power;
a power converter arranged to
receive at least part of the input power from the input terminal of LED driver and;
supply an output power for powering the LED fixture;
a control unit arranged to control an output characteristic of the power converter;
a configuration terminal connected to the control unit;
the control unit further being arranged to:
receive, via the configuration terminal, a configuration signal representing a maximum allowable input power received via
the input terminal, the configuration signal being settable prior to and after installation of said LED driver; and

control the output characteristic of the power converter while maintaining the input power at or below the maximum allowable
input power.

US Pat. No. 9,370,057

INTERFACE CIRCUIT FOR A LIGHTING DEVICE

ELDOLAB HOLDING B.V., So...

1. An interface circuit for a lighting device, the interface circuit comprising:
a single input terminal connectable to one of a plurality of signal sources, each source providing a respective one of an
analogue 0-10V signal, a DALI protocol signal, and a mains signal, to receive an input signal;

an output terminal;
a detection circuit to
receive the input signal or a signal representative thereof and
identify whether the input signal is either an analogue 0-10V signal, a DALI protocol signal or a mains signal, and
a converter circuit to convert the input signal to a control signal based on the identification, and to provide the control
signal to the output terminal to control the lighting device.

US Pat. No. 9,072,134

CONFIGURABLE LIGHTING DEVICES UNDER BROADCAST CONTROL

ELDOLAB HOLDING B.V., So...

1. A control unit for controlling an illumination parameter of one or more light sources of a plurality of light sources,
each of the plurality of light sources being switchable between a disable mode and an enable mode, and the control unit being
arranged to:
select the one or more light sources of the plurality of light sources by switching only the selected one or more light sources
into the enable mode,

thereby to enable the one or more light sources that are selected and to disable the not selected light sources to cause only
the selected one or more light sources to respond to a broadcast signal representing the required value of the illumination
parameter and containing no individual addressing information for the plurality of light sources, convert the input signal
to the broadcast signal for the plurality of light sources; and

enable the same broadcast signal to be provided to the plurality of light sources after the one or more light sources have
been selected, thereby enabling only the selected one or more light sources to comply with the required value of the illumination
parameter.

US Pat. No. 9,560,707

METHODS AND APPARATUSES FOR OPERATING GROUPS OF HIGH-POWER LEDS

EldoLAB Holding B.V., Ei...

1. A lighting system comprising:
one or more lighting units;
wherein driving of the one or more lighting units, takes place by means of instructions in a parametric script; and
wherein the lighting units are configured to load a scripted and parameterized sequence description of a light show,
the one or more lighting units each comprising a local show controller capable of interpreting the scripted and parameterized
sequence description in order to perform the light show.

US Pat. No. 9,468,061

LED DRIVER AND METHOD OF CONTROLLING AN LED ASSEMBLY

ELDOLAB HOLDING B.V., So...

1. An LED driver for powering an LED fixture, the LED driver comprising:
a switched mode power supply for providing a current to the LED fixture, and
a control unit for controlling a switch of the switched mode power supply, the control unit comprising an input terminal for
receiving a set point representing a desired output characteristic of the LED fixture; the control unit further being configured
to

periodically determine an opening instant of said switch and a closing instant of said switch;
calculate at least one predetermined measurement instant having a fixed time relation to at least one of the opening instant
or the closing instant of the switch;

determine an average current estimate based on measurement of the current at the calculated at least one predetermined measurement
instant; and

apply the average current estimate as a feedback signal representing the average current for controlling the current.

US Pat. No. 9,113,512

METHOD OF CONFIGURING AN LED DRIVER, LED DRIVER, LED ASSEMBLY AND METHOD OF CONTROLLING AN LED ASSEMBLY

EldoLAB Holding B.V., Ei...

1. A method comprising:
configuring an LED driver, the LED driver to provide a supply power to an LED fixture comprising a plurality of LEDs, by
identifying the LED fixture;
obtaining, using the identification of the LED fixture, configuration data for the LED driver from a configuration database;
and

configuring the LED driver according to the configuration data; and
operating the LED driver, the LED driver comprising a power converter for powering the LED fixture and a control unit for
controlling the power converter and/or the LED fixture, by determining, by the control unit, an output signal for the power
converter or LED fixture based on the configuration data.

US Pat. No. 9,629,212

CONTROL UNIT FOR A LED ASSEMBLY AND LIGHTING SYSTEM

ELDOLAB HOLDING B.V., So...

1. A circuit that drives a light emitting diode (LED) assembly, the LED assembly comprising at least one LED illumination
device, the circuit comprising:
a switch;
an inductor connected in a series with the switch, the switch charging the inductor in a conductive state;
a current measurement element that measures a current flowing through at least one of the inductor and the LED illumination
device, the switch, inductor, and current measurement element being serially connected with the LED illumination device during
operation;

a reference signal generator that generates a reference signal;
a comparator that compares a signal representing the current measured by the current measurement element with the reference
signal, an output signal of the comparator, which represents a result of the comparison, being provided to the switch for
driving the switch; and

a controller that controls an operation of the reference signal generator,
wherein the controller is configured to dim the LED illumination device by controlling the reference signal generator to alternate
between generating a first reference signal value during a first part of a cycle time and a second reference signal value,
that differs from the first reference signal value, during a second, remaining part of the cycle time, both the first and
second reference signal values being non-zero, the cycle time being a modulation cycle time and extending over plural switching
cycles of the comparator and the switch,

the generating of the first reference signal value during the first part of the cycle time providing that the periodical switching
of the comparator and the switch in the first cycle time part resulting in a first current level, the first current level
providing an average voltage over the current measurement element corresponding to the first reference signal value, and

the generating of the second reference signal value during the second, remaining part of the cycle time providing that the
periodical switching of the comparator and the switch in the second cycle time part resulting in a second current level, the
second current level providing an average voltage over the current measurement element corresponding to the second reference
signal value,

the first and second current levels being non-zero, the second current level differing from the first current level,
thereby dimming the current of the LED illumination device over the cycle time to a level in between the first current level
and the second current level hence increasing resolution of dimming the current of the LED illumination device.

US Pat. No. 9,228,702

LED LAMP COMPRISING LIGHT GUIDE INCLUDING FIRST AND SECOND DIFFUSING SURFACES

ELDOLAB HOLDING B.V., So...

1. An LED lamp comprising:
an LED unit;
a light guide arranged to receive a light beam from the LED unit and guide the light beam towards a first light diffusing
surface thereby providing a diffused light beam;

the light guide comprising
a second light diffusing surface facing the first light diffusing surface for diffusing at least part of the diffused light
beam,

a first member, wherein the light beam is received at a first end surface of the first member of the light guide, a second
end surface of the first member comprising the first diffusing surface,

a second member,
a first end surface of the second member comprising the second diffusing surface, and
wherein the first and second member are selectively displaceable relative to each other during use to realize desired illumination
effects.

US Pat. No. 9,095,015

CONFIGURABLE LIGHT FIXTURE, CONFIGURABLE LIGHTING SYSTEM AND METHOD FOR CONFIGURING A LIGHTING SYSTEM

ELDOLAB HOLDING B.V., So...

1. A configurable light fixture comprising a receiver for receiving a pairing signal transmitted by a transmitter of a user
interface, the pairing signal comprising a receiver independent transmitter ID enabling an identification of the transmitter,
the receiver being arranged to:
receive a pairing signal transmitted by the transmitter, the pairing signal comprising the receiver independent transmitter
ID, the pairing signal being transmitted by the transmitter during a period T1,

store the received receiver independent transmitter ID comprised in the pairing signal in a first memory unit of the light
fixture only when the pairing signal is received within a pairing time window, the pairing time window having a period T2, the period T2 at least partly overlapping the period T1,

open the pairing time window having the period T2 when the receiver is switched on from an off state,

compare, upon receipt of a control signal from a transmitter, a transmitter ID comprised in the control signal with the stored
transmitter ID, and

release the control signal when the stored receiver independent transmitter ID corresponds with the transmitter ID comprised
in the control signal.

US Pat. No. 9,554,433

DRIVER SYSTEM FOR DRIVING A PLURALITY OF LED'S

EldoLAB Holding B.V., So...

1. A driver system for driving a plurality of LED's, the driver system comprising:
a control module having an input for receiving operating data; and
at least two driver modules, each driver module for driving at least one of the LED's, each of the driver modules comprising:
a hysteretical converter for generating an LED current to power the LED's, and
a controller electrically connected to the hysteretical converter for controlling the hysteretical converter,
wherein each of the driver modules comprises a respective reference signal generator for generating a respective reference
signal, the reference signal generator being connected to a setpoint input of the hysteretical convertor to provide the respective
reference signal to the setpoint input of the hysteretical convertor, causing each driver module to generate, by its respective
hysteretical convertor its own LED current proportional to the respective reference signal,

wherein each of the driver modules receives the same supply voltage,
and further wherein the controller of each of the driver modules is configured to measure a value of the supply voltage thereby
using the reference signal provided by the reference signal generator of the respective driver module as a reference, and
thereby comparing by each driver module the supply voltage with the reference signal of the reference signal generator of
that respective driver module,

control module being configured to calibrate the LED currents of the driver modules in respect of each other by comparing
the measurements of the value of the supply voltage of the at least two driver modules with each other and calibrating the
reference signal generators of the at least two driver modules in respect of each other based on a difference between the
measurements of the value of the supply voltages by the driver modules, whereby each driver module measures the same supply
voltage using its own reference signal generator as its respective reference.

US Pat. No. 9,253,839

LED DRIVER CIRCUIT AND METHOD

ELDOLAB HOLDING B.V., Ei...

1. A driver circuit for driving at least one LED, the driver circuit comprising:
a data input for receiving setpoint data at a first data rate and at a first bit resolution,
an LED output for driving the at least one LED with LED driving values at a second data rate and at a second bit resolution,
and

a processing device arranged for determining from the setpoint data by interpolation at least part of the LED driving values.

US Pat. No. 9,578,711

LED DRIVER, LIGHTING DEVICE AND LED BASED LIGHTING APPLICATION

EldoLAB Holding B.V., So...

1. An LED based lighting application comprising:
an LED driver for powering an LED fixture, the LED driver comprising:
a power converter for converting an input power to an output power for powering the LED fixture;
a control unit arranged to control an output characteristic of the LED driver; and
an application terminal connected to the control unit for connecting the control unit to a lighting device;
wherein the lighting device comprises:
an LED fixture and/or a sensor
an i/o terminal connectable to the application terminal of the LED driver; and
a control unit connected to the i/o terminal for providing a control signal to the application terminal of the LED driver;
wherein the control unit of the LED driver is further arranged to convert the control signal to a command, to provide the
command to a protocol stack of the control unit and to control the output characteristic based on the command.

US Pat. No. 9,629,221

LED FIXTURE AND LED LIGHTING ARRANGEMENT COMPRISING SUCH LED FIXTURE

ELDOLAB HOLDING B.V., So...

1. An LED fixture comprising:
at least one LED,
an electrical power terminal, electrically connected to the LED, the electrical power terminal for electrically connecting
the LED to an LED driver,

a storage device for storing data in relation to the LED, and
a data processing device, electrically connected to the storage device for storing data in the storage device and reading
data therefrom, the data processing device being arranged and connected for providing data communication via at least one
of the electrical power terminal and the LED;

wherein the data processing device is arranged for sending data to the LED driver by:
detecting a LED driver output voltage decrease; and
sending the data to the LED driver by modulating an impedance of the electrical power terminal when an LED driver output voltage
decrease has been observed.

US Pat. No. 9,271,345

LED BASED LIGHTING APPLICATION

ELDOLAB HOLDING B.V., So...

1. An LED driver for powering an LED assembly comprising at least one LED, the LED driver comprising a converter for converting
a periodic input voltage to a supply current for powering the LED assembly, the LED driver further comprising a control unit
configured to determine a minimal holding current by, in use, gradually reducing the supply current until a value of the input
voltage of the converter substantially reduces to zero and the control unit is further configured to subsequently control
the converter to operate at a supply current at least equal to the minimal holding current.

US Pat. No. 9,750,093

LED BASED LIGHTING APPLICATION

ELDOLAB HOLDING B.V., So...

1. A lighting application comprising:
an LED assembly comprising two or more LED units, each LED unit comprising one or more LEDs, the LED assembly further comprising
a switch assembly comprising one or more controllable switches for modifying a topology of the LED assembly from a series
connection of two of the LED units to a parallel connection of the two of the LED units, the LED assembly, in use, being powered
from a supply voltage, and

a control unit comprising an input terminal arranged to receive a signal representing a voltage level of the supply voltage
or a load current of the LED assembly,

output terminal for providing a control signal to the switch assembly to control the switch assembly in accordance with the
signal, thereby modifying the topology of the LED assembly from the series connection of two of the LED units to the parallel
connection of the two of the LED units when the signal representing the voltage level of the supply voltage indicates that
the voltage level of the supply voltage is reduced, and

a waveform analyzer arranged to assess the supply voltage and provide the signal to the control unit.

US Pat. No. 9,769,887

POWER CONVERTER FOR AN LED ASSEMBLY AND LIGHTING APPLICATION

EldoLAB Holding B.V., So...

1. A power converter for an LED assembly, the power converter comprising:
a switched mode power supply arranged to power the LED assembly;
an AC/DC converter arranged to provide a variable DC supply voltage to an input terminal of the switched mode power supply,
the switched mode power supply being configured to convert the variable DC supply voltage to a required load voltage for powering
the LED assembly; and

a control unit, in normal use for powering the LED assembly, arranged to substantially continuously receive an input signal
representing a required load voltage for powering the LED assembly, the control unit being arranged to control the AC/DC converter,
thereby, in normal use controlling the variable DC supply voltage, in accordance with the required load voltage.

US Pat. No. 9,872,363

METHOD FOR OPERATING A LIGHTING GRID AND LIGHTING UNIT FOR USE IN A LIGHTING GRID

ELDOLAB HOLDING B.V., So...

1. A method of configuring a lighting grid comprising a plurality of lighting units, the method comprising the steps of
a. providing a signal to the lighting grid to operate the lighting grid in a configuration mode;
b. selecting a lighting unit of the lighting grid to be configured;
c. establishing a configuration signal for the selected lighting unit;
d. providing the configuration signal to the lighting grid; and
e. configuring the selected lighting unit by the configuration signal.

US Pat. No. 9,820,347

CONTROL UNIT FOR A LED ASSEMBLY AND LIGHTING SYSTEM

ELDOLAB HOLDING B.V., So...

1. A control unit for an LED assembly comprising a plurality of LED units, each LED unit being powered by a separate power
supply, the control unit being programmed so that the control unit will:
receive an input signal representing a desired output characteristic of the LED assembly,
determine duty cycles for each of the LED units, and
cause the duty cycles to be applied to the respective LED units to power one or more of the respective LED units,
the control unit being programmed so that the control unit will selectably choose the duty cycles for the respective LED units
to ensure that both of the following conditions must happen:

the desired output characteristic of the LED assembly being obtained, and
optimization of overall efficiency of the LED assembly taking into account an efficiency characteristic of the power supplies,
wherein the optimization of overall efficiency of the LED assembly comprises maximization of the number of LED units operating
at a maximum efficiency of the efficiency characteristic.

US Pat. No. 9,936,546

METHODS AND APPARATUSES FOR OPERATING GROUPS OF HIGH-POWER LEDS

EldoLAB Holding B.V., So...

1. A method of driving, by means of at least two power supplies, a number of high-power light-emitting diodes (LEDs), said number of LEDs being divided into two or more groups, each group being separately energizable by a corresponding one of the power supplies, said method comprising:a) energizing or de-energizing a supply current from the corresponding one of the power supplies into a first one of the groups;
b) waiting for a predetermined wait time period; and
c) repeating step a) and b) for a second one of the groups.

US Pat. No. 9,936,551

LED DRIVER FOR POWERING AN LED UNIT FROM AN ELECTRONIC TRANSFORMER

ELDOLAB HOLDING B.V., So...

1. An LED driver comprisinga power converter for powering an LED unit;
a control unit for controlling the power converter;
the power converter comprising
an input terminal for receiving a rectified AC supply voltage originating from an electronic transformer, and
an output terminal for supplying an output current to the LED unit,
the control unit comprising
an input for receiving a supply signal representative of the supply voltage and
an output for providing a control signal to the power converter, whereby
the control unit is arranged to:
determine the control signal for controlling the power converter based on the supply signal, and
control at least one of the power converter and the LED unit to draw an input current from the input terminal, the input current comprising a pulsed current, wherein the input current prevents the electronic transformer from ceasing to supply the rectified AC supply voltage, and
wherein said driver further comprises an energy storage element connectable to the input terminal, the energy storage element comprising a capacitor, and
further comprising a first switch for connecting and disconnecting the energy storage element to the input terminal, the first switch being controlled by the control unit, to draw the pulsed current from the input terminal.

US Pat. No. 10,045,408

CONTROL UNIT FOR A LED ASSEMBLY AND LIGHTING SYSTEM

ELDOLAB HOLDING B.V., So...

1. A control unit for an LED assembly comprising a first and second LED unit, said LED units being serial connected in series, the LED assembly, in use, being powered by a switched mode power supply, the control unit being arranged toreceive an input signal representing a desired output characteristic of the LED assembly,
determine a first and second duty cycle of the respective first and second series-connected LED units associated with a nominal current of the switched mode power supply, for providing the desired output characteristic,
determine the largest of the first and second duty cycles of the respective first and second series-connected LED units,
determine a reduced current to both the first and second series-connected LED units based on at least the largest of the duty cycles,
adjust the first and second duty cycle of respective first and second series-connected LED units based on the reduced current to both the first and second series-connected LED units or the largest of the duty cycles of the first and second series-connected LED units,
provide output data for the LED assembly and the switched mode power supply based on the adjusted first and second duty cycles and the reduced current.

US Pat. No. 10,098,205

CONFIGURABLE LIGHTING DEVICES UNDER BROADCAST CONTROL

ELDOLAB HOLDING B.V., Ed...

1. A lighting system comprising a central control unit for controlling a plurality of light sources, and a local control unit for controlling an illumination parameter of one or more of the light sources of the plurality of light sources,the local control unit being arranged to operate in a first mode to:
select the one or more light sources by providing a first signal to the plurality of light sources to cause only the selected one or more light sources to respond to a broadcast signal representing the required value of the illumination parameter; and
receive an input signal representing a required value of the illumination parameter for the selected one or more light sources, and convert the input signal to a control signal for the central control unit; and
the central control unit being arranged to:
receive the control signal and convert the control signal to the broadcast signal; and
provide the same broadcast signal to the plurality of light sources, thereby arranging each light source to:
receive the broadcast signal and
when selected, use the broadcast signal to comply with the required value of the illumination parameter.

US Pat. No. 9,979,477

METHOD FOR DRIVING A LIGHT SOURCE, A DRIVER SYSTEM TO DRIVE A LIGHT SOURCE AND A LUMINAIRE COMPRISING SAID LIGHT SOURCE AND DRIVER SYSTEM

EldoLAB Holding B.V., So...

1. A method for driving a light source, said method comprising the following steps:a. providing a code to be transmitted by the light source;
b. converting the code into a sequence of different current levels, which current levels are maintained for a predetermined period of time; and
c. providing the sequence of different current levels to the light source such that the light source emits light at different intensity levels,
wherein driving the light source is carried out using a set-point update rate having a set-point update period, and
wherein transitions between the different current levels take more than one set-point update period.

US Pat. No. 10,172,196

LIGHT UNIT DRIVER SYSTEM

ELDOLAB HOLDING B.V., So...

1. A light unit driver system comprising:a light unit driver comprising a plurality of light unit driver channels, each light unit driver channel comprising a switching type converter comprising an inductor,
a supply rail that is connected to respective power inputs of the light unit driver channels to conduct electrical energy to the light unit driver channels,
a backup energy storage configured for storing electrical energy,
a control device for controlling the light unit driver,
wherein each light unit driver channel comprises a respective light unit driver channel output, each light unit driver channel being configured for driving a respective light unit via the respective light unit driver channel output of the light unit driver channel,
wherein the backup energy storage is electrically connected to the light unit driver channel output of one of the light unit driver channels to be charged via the light unit driver channel output of the one of the light unit driver channels, the light units being connected to the light unit driver channel outputs of the remaining light unit driver channels,
wherein the one of the light unit driver channels, of which the light unit driver channel output is connected to the backup energy storage, is operable to conduct energy back from its light unit driver channel output to the supply rail,
and wherein the control device is configured to:
in an operational mode, operate the one of the light unit driver channels to charge the backup energy storage via the one of the light unit driver channel outputs to which the backup energy storage is connected, and operate the remaining light unit driver channels to drive the light units, and
in an emergency mode, operate the one of the light unit driver channels to feed energy back from the backup energy storage, via the light unit driver channel output of the one of the light unit driver channels, to the supply rail, and operate the remaining light unit driver channels to drive the light units powered via the one of the light unit driver channels from the backup energy storage.

US Pat. No. 10,237,952

LED FIXTURE AND LED LIGHTING ARRANGEMENT COMPRISING SUCH LED FIXTURE

EldoLab Holding B.V., So...

1. An LED lighting module comprising:at least one LED;
the LED lighting module being configured to be connected to an LED driver module, the LED driver module comprising a converter for converting a power supply voltage into an LED driver module electrical output power for powering the at least one LED of the LED lighting module and a controller for controlling the converter,
wherein the LED lighting module is configured to be powered by the LED driver module and wherein the LED lighting module does not comprise a converter for powering the at least one LED, and
wherein the LED lighting module further comprises:
an electrical power terminal, electrically connected to the LED, the electrical power terminal for electrically connecting the LED to the LED driver module to power the at least one LED from the LED driver module electrical output power as received from the LED driver module;
a storage device for storing data in relation to the LED; and
a data processing device, electrically connected to the storage device for storing data in the storage device and reading data therefrom, the data processing device being arranged and connected for providing data communication via at least one of the electrical power terminal and the LED;
wherein the data processing device is in a circuit connection with the LED for controlling a light output of the LED.