Power supply for an infrared transmitter

(19)

(11)

EP 1 796 436 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	18.07.2007 Bulletin 2007/29

(43)	Date of publication A2:
	13.06.2007 Bulletin 2007/24

(21)	Application number: 07101600.0

(22)	Date of filing: 02.08.2002

(51)

International Patent Classification (IPC):

H05B 33/08^(2006.01)
H05B 39/08^(2006.01)

H05B 37/02^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

(30)

Priority:

03.08.2001 US 309929 P

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	02765926.7 / 1413175

(71)	Applicant: Lutron Electrics Co., Inc.
	Coopersburg PA 18036 (US)

(72)	Inventors:
	Jacoby, Elliot G. Glenside, PA19038 (US) Gomes, Carl W. Ocean, NJ 07712 (US) Gehman, Jackson P. Coopersburg, PA 18036 (US) Salvestrini, Christopher J. Bethlehem, PA 18015 (US) Samuels, Richard D. Riegelsville, PA 18077-9760 (US) Leichliter, Shawn L. Allentown, PA 18103 (US)

(74)	Representative: McIlroy, Steven David
	Murgitroyd & Company Scotland House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)

(54)	Power supply for an infrared transmitter

(57) The invention relates to a power supply for an infrared transmitter having at least one LED driver. The power supply includes a power supply capacitor (102), a filter network (108) comprising a filter capacitor (112) and resistor (110) connected in series with the power supply capacitor (102). The filter network (108) supplies current pulses to the LED driver. The power supply further includes a diode (114) connected in parallel with the resistor (110) of the filter network (108) to provide isolation between the filter capacitor (112) and the power supply capacitor (102).

Search report