Electric lamp and discharge devices: systems – Discharge device and/or rectifier in the supply circuit – Discharge device and/or rectifier in the primary circuit of...
Reexamination Certificate
2008-11-06
2011-12-13
Ismail, Shawki S (Department: 2819)
Electric lamp and discharge devices: systems
Discharge device and/or rectifier in the supply circuit
Discharge device and/or rectifier in the primary circuit of...
C315S057000, C315S072000, C315S291000
Reexamination Certificate
active
08076860
ABSTRACT:
A power converter and power conversion method converts an input AC signal to a voltage usable by a load while reducing power consumption, thereby making the converter and method suitable for a wider range of applications. A rectifier receives the AC input signal and outputs a rectified voltage Vs, a controller has a power input connected to Vs and outputs two out-of-phase signals, two transistors are connected in series between Vs and a ground and each of the two transistors has a gate connected to a respective one of the two out-of-phase signals, and a transformer that has a primary coil connected to a node between the two transistors and a secondary coil connected to a load feeds back current from the secondary coil to the power input of the controller to reduce power consumption.
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Extended European Search Report, European Patent Office, dated Feb. 12, 2010.
Ismail Shawki S
Montana Shaun P.
Osram Sylvania Inc.
White Dylan
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