-
公开(公告)号：US20190116651A1
公开(公告)日：2019-04-18
申请号：US16214499
申请日：2018-12-10
Applicant: PHILIPS LIGHTING HOLDING B.V.
Inventor： JOHAN-PAUL MARIE GERARD LINNARTZ , PETER DEIXLER , YIFENG QIU , PAUL THEODORUS JACOBUS BOONEN
Abstract: 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.
-
公开(公告)号：US20180049282A1
公开(公告)日：2018-02-15
申请号：US15557558
申请日：2016-03-01
Applicant: PHILIPS LIGHTING HOLDING B.V.
Inventor： YIFENG QIU , PETER GERRIT BLANKEN
CPC classification number: H05B33/0809 , H02J7/0068 , H05B33/0806 , H05B33/0842 , H05B37/02
Abstract: Drivers (1-10) for driving load circuits (100) comprise supply circuits (1) for providing supply current signals from a mains source to the load circuits (100), storage circuits (2) for storing energy destined for the load circuits (100), and switch circuits (3-8) coupled with the storage circuit (2), the load circuit (100) and the supply circuit (1), and for switching the coupling among the storage circuits (2), the load circuit (100) and the supply circuit (1). The switched storage circuits (2) 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 (100) together with the supply current signals, and in independent discharge states be discharged via the load circuits (100) independently from the supply current signals for a substantial time duration. The drivers (1-10) may further comprise controllers (10) for controlling the switch circuits (3-8) for bringing the drivers (1-10) between two subsequent zero-crossings of signals supplied to the supply circuits (1) 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 (1-10) show a reduced total harmonic distortion.
-
公开(公告)号：US20180007766A1
公开(公告)日：2018-01-04
申请号：US15129183
申请日：2015-03-12
Applicant: PHILIPS LIGHTING HOLDING B.V.
Inventor： JOHAN-PAUL MARIE GERARD LINNARTZ , PETER DEIXLER , YIFENG QIU , PAUL THEODORUS JACOBUS BOONEN
CPC classification number: H05B37/0272 , H05B33/0809 , H05B33/0812 , H05B33/0845 , H05B33/0854 , H05B37/0218
Abstract: 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.
-
-
Search Results
3
records
(took 0.011 seconds)
