US Pat. No. 10,305,279

LOAD CONTROL DEVICE HAVING A REDUCED LEAKAGE THROUGH GROUND

Lutron Technology Company...

1. A load control device for controlling power delivered from an AC power source to an electrical device, the load control device comprising:a first electrical connection adapted to be electrically coupled to a hot side of the AC power source;
a second electrical connection adapted to be electrically coupled to the electrical device;
a third electrical connection adapted to be electrically coupled to an earth ground connection or a neutral side of the AC power source;
a controllably conductive device electrically coupled between the first and second electrical connections and configured to control the power delivered from the AC power source to the electrical device so as to generate a switched-hot voltage at the second electrical connection;
a detect circuit electrically coupled between the second and third electrical connections and configured to generate a detect signal indicating a magnitude of the switched-hot voltage;
a switching circuit electrically coupled in series with the detect circuit between the second and third electrical connections; and
a control circuit configured to render the switching circuit conductive to cause the detect circuit to begin generating the detect signal, the control circuit configured to subsequently monitor the detect signal from the detect circuit and to render the switching circuit non-conductive after detecting an edge on the detect signal.

US Pat. No. 10,331,100

ENERGY SAVINGS SELECTOR TOOL

Lutron Technology Company...

1. A system controller device configured to recommend, via an energy savings selector tool, an electrical device for reducing an amount of power consumed by a load control system, the system controller device comprising:at least one processor configured to:
receive load control information associated with a first electrical device;
determine the amount of power consumed by the load control system over a period of time, wherein the amount of power consumed by the load control system is determined based on the load control information associated with the first electrical device, wherein the first electrical device is at least one of a first electrical load or a first electrical load control device configured to control an amount of power provided to the first electrical load;
determine a second electrical device as a recommended addition to the first electrical device in the load control system that, when installed in the load control system, reduces the amount of power consumed by the load control system, wherein the second electrical device is at least one of a second electrical load or a second electrical load control device configured to control an amount of power provided to the second electrical load;
determine savings information associated with using the second electrical device as the recommended addition to the first electrical device in the load control system, wherein the savings information indicates a savings associated with using the second electrical device as the recommended addition to the first electrical device in the load control system; and
provide to a network device, via a network communication circuit, the savings information associated with using the second electrical device as the recommended addition to the first electrical device in the load control system and information identifying the second electrical device as the recommended addition to the first electrical device in the load control system.

US Pat. No. 10,314,129

TURN-ON PROCEDURE FOR A LOAD CONTROL DEVICE

Lutron Technology Company...

1. A load control device for controlling the intensity of a lighting load, the load control device comprising:a power converter circuit configured to receive a first voltage and to produce a second voltage across a capacitor; and
a control circuit operatively coupled to the power converter circuit and configured to control the power converter circuit to generate the second voltage across the capacitor;
wherein the control circuit is configured to determine a learned capacitor voltage from the magnitude of the second voltage of the capacitor, the control circuit configured to determine an operating parameter associated with the power converter circuit as a function of the learned capacitor voltage, the control circuit configured to control the power converter circuit according to the operating parameter to charge the capacitor until the magnitude of the second voltage reaches a threshold.

US Pat. No. 10,314,148

FACEPLATE REMOTE CONTROL DEVICE FOR USE IN A LOAD CONTROL SYSTEM

Lutron Technology Company...

1. A faceplate remote control device comprising:a housing that defines an opening that is configured to receive a toggle actuator of a light switch, wherein the housing is configured such that the toggle actuator protrudes through the opening and is operable between a first position and a second position when protruding through the opening;
a user interface integrated with the housing, wherein the user interface is configured to receive an input from a user of the faceplate remote control device; and
a wireless communication circuit that is configured to transmit a message in response to receiving the input at the user interface.

US Pat. No. 10,306,723

LOAD CONTROL DEVICE FOR A LIGHT-EMITTING DIODE LIGHT SOURCE HAVING DIFFERENT OPERATING MODES

Lutron Technology Company...

1. A method for controlling an amount of power delivered to an electrical load, the method comprising:during a normal mode, regulating an average magnitude of a load current conducted through the electrical load by holding a burst duty cycle of a load regulation circuit constant and adjusting a target load current conducted through the electrical load; and
during an intermediate mode and a low-end mode, controlling the load regulation circuit to operate in active state periods during which the load regulation circuit is active and in inactive state periods during which the load regulation circuit is inactive, and
during the intermediate mode, adjusting the burst duty cycle and the average magnitude of the load current by keeping the length of the inactive state periods constant and adjusting the length of the active state periods; and
during the low-end mode, adjusting the burst duty cycle and the average magnitude of the load current by keeping the length of the active state periods constant and adjusting the length of the inactive state periods.

US Pat. No. 10,310,540

METHOD AND APPARATUS FOR PHASE-CONTROLLING A LOAD

Lutron Technology Company...

1. A load control device for controlling an amount of power delivered from an alternating current (AC) power source to an electrical load, the load control device comprising:a bidirectional semiconductor switch configured to be coupled between the AC power source and the electrical load; and
a controller operatively coupled to the bidirectional semiconductor switch, the controller configured to:
receive, via an actuator or a communication circuit, a command to turn on;
control the bidirectional semiconductor switch to provide a phase control signal using a reverse phase control technique to control the electrical load in response to the command to turn on;
subsequent to using the reverse phase control technique, control the bidirectional semiconductor switch using a center phase control technique to control the electrical load; and
subsequent using the center phase control technique, control the bidirectional semiconductor switch using a forward phase control technique to control the electrical load.

US Pat. No. 10,292,245

DIGITAL LOAD CONTROL SYSTEM PROVIDING POWER AND COMMUNICATION VIA EXISTING POWER WIRING

LUTRON TECHNOLOGY COMPANY...

1. A load control system comprising:a power device adapted to receive power from an AC power source via a power wiring; and
a controller adapted to be coupled in series electrical connection on the power wiring between the AC power source and the power device, the controller configured to produce a phase-control voltage that is adapted to be received by the power device via the power wiring, the controller configured to transmit a forward digital message to the power device by encoding digital information in timing edges of the phase-control voltage;
wherein the power device is configured to transmit a reverse digital message to the controller via the power wiring, the reverse digital message being split up into two or more packets; and
wherein the controller is configured to transmit a continuation pattern between the packets of the reverse digital message.

US Pat. No. 10,278,268

CONTROLLING LIGHTING LOADS TO ACHIEVE A DESIRED LIGHTING PATTERN

LUTRON TECHNOLOGY COMPANY...

1. A method of controlling a plurality of lighting fixtures to obtain a predefined light profile across a surface, the method comprising:retrieving an image of a space;
determining a lighting level for a first sub-area within the space;
determining a lighting level for a second sub-area within the space;
determining a first lighting fixture that affects the lighting level for the first sub-area and the lighting level for the second sub-area;
determining a second lighting fixture that affects the lighting level for the second sub-area; and
adjusting the first lighting fixture and the second lighting fixture to achieve a first target light level in the first sub-area and a second target light level in the second sub-area, wherein the adjustment of the second lighting fixture is in response to an amount that the first lighting fixture affects the lighting level for the second sub-area when the first lighting fixture is adjusted.

US Pat. No. 10,276,322

LASER-CUT BUTTON VENEER FOR A CONTROL DEVICE HAVING A BACKLIT KEYPAD

LUTRON TECHNOLOGY COMPANY...

1. A veneer that is configured to be secured to a backlit button of a control device, the veneer comprising:a plate portion that includes one or more indicia defined therethrough by a laser cutting process, wherein at least one of the one or more indicia comprises an alphanumeric character, and wherein the plate portion defines a rib that suspends a floating portion of the alphanumeric character relative to an open portion of the alphanumeric character, wherein the rib defines a thickness that does not exceed 0.003 inches.

US Pat. No. 10,342,099

TURN-ON PROCEDURE FOR A LOAD CONTROL SYSTEM

Lutron Technology Company...

1. A load regulation device for controlling an electrical load, the load regulation device comprising:a load regulation circuit configured to control the electrical load; and
a control circuit configured to control the load regulation circuit to control an amount of power delivered to the electrical load, the control circuit configured to operate in an on state during which the control circuit controls the load regulation circuit to energize the electrical load, and in a low power state during which the electrical load is unenergized;
wherein the control circuit is configured to:
receive an indication of a user's presence;
transition from a low power state to a ready state in response to receiving the indication, wherein the ready state is characterized by the load regulation device using more power than the low power state and the electrical load being unenergized;
wait in the ready state for a change state instruction;
transition from the ready state to the low power state if the change state instruction is not received within a first predetermined period of time;
transition from the ready state to the on state in response to receiving the change state instruction within the first predetermined period of time; and
transition from the on state to one of the ready state or the low power state in response to receiving an actuation of an actuator or in response to determining a lack of the user's presence in a vicinity of the electrical load for a second predetermined period of time.

US Pat. No. 10,342,100

MODULAR LIGHTING PANEL

Lutron Technology Company...

1. A system for controlling a plurality of electrical loads, the system comprising:an electrical control panel comprising:
a control circuit;
an alternating current (AC) line feed;
a direct current (DC) line feed configured to provide DC power from at least one DC power source;
a plurality of power supplies, where each power supply is configured to receive AC power or DC power and output DC power; and
a plurality of control modules, wherein more than one control module is associated with each of the plurality of power supplies, and each control module is configured to receive DC power from an associated power supply and provide a DC voltage to at least one electrical load; and
a grid-tie inverter electrically connected between the DC line feed and the AC line feed, the grid-tie inverter configured to receive DC power via the DC line feed, convert the DC power to AC power, and provide the AC power to the AC line feed;
wherein, based on one or more factors, the control circuit is configured to determine an amount of DC power received via the DC line feed to provide to one or more of the power supplies, and to determine an amount of DC power received via the DC line feed to convert to AC power and direct to the AC line feed.

US Pat. No. 10,342,103

CONTROL DEVICE WITH MULTIPLE FEEDBACK TYPES

Lutron Technology Company...

1. A remote control device comprising:a status indicator configured to be illuminated by three or more light sources; and
a control circuit configured to:
receive device information regarding one or more devices that are responsive to the remote control device, wherein the device information comprises at least one of an address or a device type of each of the one or more devices;
select, based on the device information, a feedback type of a plurality of feedback types to be provided via the status indicator, wherein the plurality of feedback types comprise at least one simple feedback type that is provided in response to a user interface event on the remote control device and at least one advanced feedback type provided in response to a status of one or more load control devices; and
provide feedback according to the selected feedback type via the status indicator by illumination of one or more of the three or more light sources, wherein the control circuit is configured to provide a different illumination configuration of the three or more light sources for different feedback types.

US Pat. No. 10,317,923

LOAD-SENSING REMOTE CONTROL DEVICE FOR USE IN A LOAD CONTROL SYSTEM

Lutron Technology Company...

1. A load control system comprising:a remote control device configured to be clamped around at least one electrical conductor of an AC power cord of an electrical load, the remote control device comprising:
a control circuit;
a sensing circuit communicatively coupled to the control circuit and configured to sense an electrical current of the electrical load, the sensed electrical current indicating a change in state of the electrical load from an on state to an off state;
a programming button communicatively coupled to the control circuit, wherein in response to the programming button being actuated, the control circuit is configured to associate the remote control device with a load control device so that the load control device is responsive to messages transmitted by the remote control device, wherein the load control device is configured to control an intensity of a lighting load by controlling an amount of power delivered to the lighting load, and wherein the lighting load and the electrical load are different loads; and
a communication circuit communicatively coupled to the control circuit and configured to transmit messages to the associated load control device;
wherein in response to sensing, via the sensing circuit, the change in the state of the electrical load from the on state to the off state, the control circuit is configured to transmit a message to the load control device via the communication circuit, wherein the transmitted message includes information related to the change in the state of the electrical load from the on state to the off state, and wherein the transmitted message causes the load control device, in response to receiving the transmitted message, to control the amount of power that is delivered to the lighting load to blink the lighting load by increasing and decreasing the intensity of the lighting load.

US Pat. No. 10,325,740

LOAD CONTROL DEVICE HAVING STUCK RELAY DETECTION

Lutron Technology Company...

1. A load control device for controlling power delivered from an AC power source to an electrical device, the load control device comprising:a relay adapted to be electrically coupled between the AC power source and the electrical device, the relay being configured to receive a hot voltage from the AC power source and generate a switched-hot voltage for controlling the power delivered to the electrical device;
a detect circuit electrically coupled to the relay to receive the switched-hot voltage and configured to generate a detect signal indicating a magnitude of the switched-hot voltage;
a control circuit configured to generate a drive signal for attempting to open and close the relay, configured to monitor the detect signal, and configured to determine whether the relay is open or closed based on the detect signal;
wherein, in response to determining that the relay is stuck closed, the control circuit is configured to:
attempt to close the relay;
attempt to open the relay;
monitor the detect signal; and
determine whether the relay is stuck closed.

US Pat. No. 10,339,795

WIRELESS COMMUNICATION DIAGNOSTICS

Lutron Technology Company...

1. A user device for determining whether a message from a control-source device to a control-target device is correctly communicated, wherein the control-source device is configured to indirectly control an amount of power provided to an electrical load by sending messages to the control-target device, the user device comprising:a control circuit configured to:
adjust a wireless range for transmitting a first message to the control-source device;
transmit the first message within the wireless range to the control-source device, wherein the first message comprises a transmission range identifier that indicates a threshold;
receive a second message from the control-source device, wherein the second message is received in a transmission from the control-source device to the control-target device, and wherein the transmission of the second message from the control-source device indicates that a received signal strength of the first message at the control-source device was greater than the threshold indicated by the transmission range identifier; and
determine, based on information in the second message, whether the second message is correctly communicated from the control-source device.

US Pat. No. 10,334,977

MOUNTING BRACKET LOCK

Lutron Technology Company...

1. A window treatment comprising:a rail that is elongate between a first end and an opposed second end;
first and second mounting brackets defining a first attachment member and a second attachment member, respectively, wherein the first and second mounting brackets are configured to attach to the first and second ends of the rail via the respective first and second attachment members;
a covering material that is configured to be supported by the first and second mounting brackets; and
a first mounting bracket lock that is configured to be slidably attached to the rail and that is configured to, when in a locked position, prevent the first attachment member of the first mounting bracket from detaching from the rail;
wherein the first mounting bracket lock defines a first projection that extends from the first mounting bracket lock, the first projection configured to engage with a first surface of the first mounting bracket via a friction fit to secure the first mounting bracket in the locked position.