Koninklijke Philips Corporation N.v.

Signify Holding B.v.

Philips Lighting Holding B.v.

Philips Intellectual Property & Standards Gmbh

Yifeng Qiu

Johan-Paul Marie Gerard Linnartz

Peter Deixler

Pieter Gerrit Blanken

Paul Theodorus Jacobus Boonen

Haimin Tao

Ralph Kurt

Anteneh Alemu Abbo

Ronald Van Langevelde

Harald Josef Günther Radermacher

An RF controlled lighting unit is provided, suitable for connection to at least one of a dimmer for adjusting a phase cut angle of input mains voltage in accordance with an adjustable dimming level or an electronic switch for selecting between on- and off-states. The lighting unit includes a solid state light source; a radio circuit for receiving a wireless control signal; a rectifier circuit for rectifying the input mains voltage received from the electronic switch or the dimmer; a first power converter for driving the solid state light source in response to the rectified input mains voltage and delivering power to the radio circuit; and a second power convertor for delivering power to the radio circuit when the rectified input mains voltage becomes inadequate for the first power converter due to the phase-cut angle of the rectified input mains voltage or the off-state of the electronic switch.

Radio frequency (RF) controlled lamp with dimmer compatibility

Drivers (-) for driving load circuits () comprise supply circuits () for providing supply current signals from a mains source to the load circuits (), storage circuits () for storing energy destined for the load circuits (), and switch circuits (-) coupled with the storage circuit (), the load circuit () and the supply circuit (), and for switching the coupling among the storage circuits (), the load circuit () and the supply circuit (). The switched storage circuits () can, in charge states, be charged via the supply current signals, and in bypass states be bypassed, and in dependent discharge states be discharged via the load circuit () together with the supply current signals, and in independent discharge states be discharged via the load circuits () independently from the supply current signals for a substantial time duration. The drivers (-) may further comprise controllers () for controlling the switch circuits (-) for bringing the drivers (-) between two subsequent zero-crossings of signals supplied to the supply circuits () into the independent discharge state, the dependent discharge state, the bypass state, the charge state, the bypass state, the dependent discharge state and the independent discharge state, in this particular order. These drivers (-) show a reduced total harmonic distortion.

Driver with at least four different states

An RF controlled lighting unit is provided, suitable for connection to at least one of a dimmer for adjusting a phase cut angle of input mains voltage in accordance with an adjustable dimming level or an electronic switch for selecting between on-and off-states. The lighting unit includes a solid state light source; a radio circuit for receiving a wireless control signal; a rectifier circuit for rectifying the input mains voltage received from the electronic switch or the dimmer; a first power converter for driving the solid state light source in response to the rectified input mains voltage and delivering power to the radio circuit; and a second power convertor for delivering power to the radio circuit when the rectified input mains voltage becomes inadequate for the first power converter due to the phase-cut angle of the rectified input mains voltage or the off-state of the electronic switch.

Apparatuses for controlling light modules () comprise first circuits () for detecting first control information transported via first signals and second circuits () for converting first control information into second control information. The second control information is transported via second signals. The first and second control information define light settings of the light modules () and have different representations. The first control information may be phase-cut information or first data. The second control information may be a parameter of the second signal or second data. The apparatus may further comprise a third circuit () for converting power from the first signals into third signals destined for power inputs () of the light modules (). The second signals may be destined for control inputs () of the light modules (). This way, a control of a light module () has been separated from powering the light module (). Many more control options have become possible.

Apparatus for controlling light module

Driver device and a corresponding driving method for driving a load, in particular an LED assembly comprising one or more LEDs. To provide a better performance, better cost-efficiency, improved power factor and reduced losses, a driver device () is provided comprising a rectifier unit () for rectifying a received AC supply voltage (V), load terminals () for providing a drive voltage (V) and/or a drive current (I) for driving said load, a capacitive storage unit () coupled between said rectifier unit and said load terminals for storing electrical energy provided by said rectifier unit and providing electrical energy to said load, and a bridge switching unit () coupled between said rectifier unit and said load for switching said capacitive storage unit into a load current path from said rectifier unit to said load terminals with a desired polarity and for switching said capacitive storage unit out of said load current path.

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Eindhoven, Netherlands

Yifeng Qiu